A mobile phone protective case made of transparent silica gel with moderate softness and hardness, and because it is as transparent as a crystal case, it is named Qingshui. The clear water shell is not easy to loose, and the size is appropriate. It can be said that it has the advantages of both a silicone shell and a crystal shell. At the same time, in order to have a beautiful appearance, the back of the clear water jacket is usually printed with delicate patterns, which is no longer like a silicone shell and crystal. The color of the shell is dull. It is a relatively good protection product.