The product is very good, its result is directly proportional to the skill of the person who places it. We all start from scratch but we learn as the minutes go by. I do not advise doing it outside because the wind will carry a large part of the product and also because when moving it, it can lose snow if it is still very fresh. It can be applied in the same place close to where the Christmas tree will be located, you just need to be careful to cover the floor around the tree and leave enough space so that the people involved in the application can walk around it, without leaving the protected space, so as not to stain with the material, floors or carpet of the house. In my case I used large garbage bags, fixed to the mat with masking tape: But I do not advise doing it because the material that falls and the water mix and stick to the soles of the shoes. You will take the material throughout the house. Better if you use large towels or sheets that absorb the excess mixture. Once finished, the towels will be filled with completely hardened snow, but don't worry, a few minutes in hot water, and the mixture will run off as a gel without damaging your sheets or whatever you have used. The same will happen with your shoes, the mixture sticks to the sole and you can slip. Place the shoes in slightly hot water up to the height of the sole and in a few minutes, everything will be fine again. It might be a good idea to cover your shoes with plastic over them, as the gel may damage them, although hot water solves everything.Our tree is 9 feet tall and we spent four bags of the product. We did it, my wife and I; she spraying water and I applying snow in perfect team timing. We took four hours to finish.I do not recommend using the kitchen strainer, although it was our first option according to the product instructions; much product is lost and the application is not the best. As I think we all want to see large amounts of snow perched on the branches of our Christmas tree, just as we would see it in real life, then the best way to apply it in the following:Use a plastic bottle with a good spray gun.Use a container or a bowl to deposit the product, almost the fourth part of each bag.After wetting the area very well, where you are going to apply the snow, take a handful of snow with your hand, place it gently on each branch, and immediately indicate to your partner where to apply water again. The more water you apply, gently and the more product you adhere manually, you will see that the branches of your tree are looking quite loaded with snow.In some parts of your tree, which are very open, you can give them a touch of snow by wetting the area very well and then throwing a handful of snow from very close, as when throwing rice at the newlyweds.It is a very fun and patient task. You can do it in the order you prefer, but we saw that it is better to do it from the bottom up, as the material falls on the finished branches and is not lost. Water, lots of water sprayed all over the tree branches and the product will flower immediately.The color is white, some photos show it yellowish, but it is a photo quality error.I can't assure you that it won't come off when you put it away, but for now, it does the job for the Christmas time.Have fun applying it and Merry Christmas to all and a prosperous new year 2021.