Not the point. Disintegration since Day 1, completely broken after 2 months

Visually, the shell is very appealing and the inner shell of silicone is a good idea, because silicone is less fragile than hard plastic. But that's about the only positive about the whole envelope. Since the first day I have sand in the shell, which can not be removed because it is an adhesive surface where the inner shell is attached, and since that day the whole shell falls apart more and more. The upper material dissolves gradually from Untermarerial and after 2.5 months of closure began to drop, after a total of 3 months in use, it now hangs on a single thread, so that the casing has become almost unusable. Yes, it is convenient, but also a cheap envelope has more than 3 months be useful. If I could 0, give points I would do so immediately.