Memory Card Carrying Case Holder Box for CF Micro SD SDHC SDXC TF Cards - 25 Slots Sealed Waterproof 1.Application Hard protective shell and robust memory cards protection box made of polycarbonate.Fits for SD card, Micro SD card, CF cards 2.High capacity 4 slots for CF card ,8 slots for SD cards and 12 slots for Micro SD memory card 3.Air Tight  Water-resistant design with a silicone seal around the lip of the case to ensures cards are safely locked away from the air, water and damp to avoid damaging your memory cards and data. 4.Special design Card box with convex design,you can comfortably grip the cartridge;and Cartridge lock to prevent the memory card is lost 5.Very durable hinge mechanism for longer life span