Review on Waterproof Shockproof Electronic Accessories Organizer Holder Bag for USB Flash Drives - GUANHE Universial Portable Case - Black by Robert Cole

Well made, durable and versatile (can be used to store a range of small items (other than electronics) which can get lost if not kept separately). I had no problems with the flash. I bought four black cases (mistake - I should have bought different colors as I use them to store quite different items, which leads to my remark about the zipper. I over open them to find the one I need since there is no room to label the case.) I plan to buy individual colors and give away additional black cases to friends who commented that this is such a neat case for storing small items in addition to electronics. Excellent purchase!