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Dynarex Cold Pack 4 x 5, 24 count

4.3 4.3 out of 5 stars 811 ratings

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Pack of 24

Purchase options and add-ons

  • Value Pack - Get more value for your money with these instant ice packs for injuries. Each box contains 24 first aid ice packs. Each instant cold pack measures 4"x5" in size to provide ample coverage.
  • Relief for Smaller Areas - With its size, this instant ice pack can be applied to small, sore parts of the body. These cold packs for injuries can be used by children for soothing, cooling comfort.
  • Quick & Easy To Use - No need to refrigerate our instant cold compress packs to prime it for use. With its single-squeeze activation, it can quickly be applied to affected areas without a hassle.
  • First Aid Preparation - With our ice pack for injury, you have convenient access to cold therapy for emergency situations. You need them for your first aid kit supplies or emergency medical supplies.
  • Compact & Ready To Go - These instant cold packs for injuries are individually packed. Stash some in your gym bag or car. Take them on trips with the family or bring them to your sporting events.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 12 x 6 x 9 inches; 3.53 ounces
  • Item model number ‏ : ‎ 4511
  • Date First Available ‏ : ‎ May 27, 2007
  • Manufacturer ‏ : ‎ Dynarex
  • ASIN ‏ : ‎ B000RBUE3A
  • Customer Reviews:
    4.3 4.3 out of 5 stars 811 ratings

Product Description

Immediate first aid treatment for contusions, sprains, abrasions and other minor injuries.. Dynarex Instant Cold Pack, 4 Inches x 5 Inches, 24-Count. Activates easily to provide instant relief. Provides an anesthetic effect. Relieves aches and pains. This item is not for sale in Catalina Island. The product is 4 Inches X 5 Inches. For activation of cold pack please refer the indication on the label. Note: It is imperative for an end user to thoroughly shake the cold pack after activation, for up to 30 seconds. By doing so, the cold pack will reach the target temperature range and stay there for at least 20 minutes. By not doing so, the cold pack’s granules cannot mix completely with the water inside and as a consequence, the cold pack will be not as cold.


From the manufacturer

Dynarex Cold Pack

Dynarex Instant Cold Packs are flexible and conform to the contours of the body, activating with a single squeeze. These Cold Pack provide instant cold therapy for minor injuries, making them ideal for first aid kits, sporting events, schools and home use.

  • Easy activation of packs, offering immediate relief to injured area
  • No refrigeration needed
  • Ideal for minor sprains, burns, nosebleeds, and headaches
  • Reduces swelling
  • Instant Hot Pack: Provides soothing warmth - Ideal for applications such as neck pain, arthritis, back injuries, and shoulder injuries

Looking for specific info?

Customer reviews

4.3 out of 5 stars
4.3 out of 5
811 global ratings

Customers say

Customers are happy with the portability and pain relief of the professional healthcare product. However, some disagree on value, temperature, size, ease of use, and durability.

AI-generated from the text of customer reviews

52 customers mention52 positive0 negative

Customers find the ice packs portable and handy to keep in their gear bags, purses, and cars. They also say they're great for traveling, carrying to the gym, and in portable aid kits. Customers also say the product is great to have on hand and is perfect for traveling and sporting events.

"...Ice is not always a fast option, so these are amazing to keep in my gear bag. I have used them on many occasions...." Read more

"Perfect for traveling. Doesn’t get super cold or stay cold for very long but it’s great for immediate relief of anxiety...." Read more

"...But....they do work for travel...." Read more

"Excellent product and great for travelling; the cold only lasts 10 minutes, but this is supposed to be a stopgap until you can get to a decent cold..." Read more

25 customers mention25 positive0 negative

Customers find the pain relief provided by the cold packs to be amazing. They say it helps to ease the pain afterwards, provides instant relief, and is good to use on sore muscles. Some customers also say the packs are good for a simple headache and a mild bang or sprain. Overall, customers are satisfied with the pain relieving capabilities of the product.

"These instant cold packs from Dynarex are handy for treating localized areas for a short time...." Read more

"...They get cold enough for some quick, short term relief and I am happy with them, but I do wish I could throw them in an insulated bag with some..." Read more

"...that were used reached a very cold temperature, very good for keeping the bruising down. I would definitely purchase more of these." Read more

"...They really don't get ice cold, but they do get cold and provide some relief...." Read more

23 customers mention23 positive0 negative

Customers find the first aid kit handy at sporting events and for use at games with kids. They also say it's great for elementary school student use and for child care facilities.

"...These are also great to refill your first-aid kit and the price is really really great especially if you do subscribe and save-- and honestly,..." Read more

"...They're great for hiking, biking, and sports." Read more

"These work GREAT. Perfect for any sporting event. Took them to my son's basketball game and we had two boy elbowed in the face...." Read more

"Nice to have for youth sports. Works well for the occasional bumps and bruises. I always keep them in my coaches bag" Read more

212 customers mention86 positive126 negative

Customers are mixed about the temperature of the product. Some mention that it gets cold enough for quick, short-term relief, and provides a good temperature. However, others say that it doesn't stay cold very long and doesn''t hold its temp quite as well as some of the name brand ones. Squeeze the bag, you will feel a little bit of cold. However the effective cool time is short.

"...True they don't stay cold very long, but they will stay cold long enough to keep swelling down until you can reassess the injury...." Read more

"...They certainly do the job to instantly cool the area. This was the best priced product for the quantity provided and the size of the bag...." Read more

"...They are kind of small and do not hold their temperature as long as some other cold packs, but for the purpose for which I am using them they are..." Read more

"...They do get very cold, but since they are small there isn't much volume for the reactants inside and they don't hold their temperature very long..." Read more

205 customers mention134 positive71 negative

Customers are mixed about the value of the product. Some are impressed with how well it works and find it very useful, while others say it didn't work for them and is not worth the price.

"...This was the best priced product for the quantity provided and the size of the bag. This is the perfect size for my use...." Read more

"...These are also the best priced instant cold packs I've found on amazon, at $16/24pack with free shipping." Read more

"...Yes it was hot when we were camping but they only lasted 5 minutes!?? Some even broken and gel came out. In a pinch good to have around...." Read more

"...cold pack for short duration activities, these Dynarex packs are a great value and work as well as other brands given their size." Read more

83 customers mention52 positive31 negative

Customers are mixed about the size of the ice pack. Some mention that it's perfect, small enough for kids, and works great when they have a cold. They also say that it works well and is not too bulky. However, some say that the size is smaller than normal packs and that it does its job well but is limited due to its size.

"...This is the perfect size for my use. If I need another to cover a larger area, I have plenty." Read more

"These are a good sized ice pack. Not big enough to wrap an entire limb, but use 2 and ace wrap and you're all set...." Read more

"...They are the perfect size for an eye, elbow, knee, etc... They are a little hard to activate, and I like that because I put them in my boys'..." Read more

"...I love that they are smaller and not too bulky and I love the big pack of them." Read more

72 customers mention37 positive35 negative

Customers have mixed opinions about the ease of use of the professional healthcare product. Some mention that it is very easy to use and convenient, while others say that it's very hard to activate.

"...can be a bit stubborn when bursting the internal bag, but they activate quickly and get quite cold...." Read more

"...the perfect size for an eye, elbow, knee, etc... They are a little hard to activate, and I like that because I put them in my boys' baseball bags..." Read more

"...They are easy to use- just pop them and they turn cold almost instantly. The only issue I have is that they warm up in about 5-10 minutes." Read more

"...They are difficult to activate by hand, and that's why they lose a star in my rating: the "Squeeze Together Here" instruction in bold print..." Read more

68 customers mention22 positive46 negative

Customers are mixed about the durability of the product. Some mention that it's sturdy enough that you aren't going to pop them by accident, while others say that it doesn't seem to last very long and takes a lot of force to break the inner liquid packet.

"...I have used them on many occasions. They can be a bit stubborn when bursting the internal bag, but they activate quickly and get quite cold...." Read more

"...Easy to activate, gets cold quick and lasts long enough to provide relief - about 15-20 min per pack...." Read more

"...They won't last an hour, no, but, you're only supposed to keep ice on 20 mins max anyway. And for an emergency situation these are ideal...." Read more

"...Some even broken and gel came out. In a pinch good to have around. I will keep some in my car for emergency" Read more

Cold when you need it
5 Stars
Cold when you need it
Purchased to have on hand for son's baseball team. At this age, they are just learning to pitch, so an occasional errant ball hits a player and these come in handy. Easy to activate, gets cold quick and lasts long enough to provide relief - about 15-20 min per pack. I've used several since received and all perform the same, more or less. For us, these have been a good value.These are 4"x5" in size and they shipped in a cardboard box (see photos). They are not date stamped, but do have a production run imprint on the sealed edge (e.g. 32238).
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