[COMPATIBILITY] All standard memory cards (SDHC and SD) up to 43mm wide for large slots, up to 24mm wide for small slots. [PREMIUM DESIGN] Rugged, water-resistant and protection box. Made of Nylon + plastic and extremely shock resistant. [DURABILITY] Nylon material makes the bag not easy to be broken and lasting long use time. [STRONG METAL TEXTURE] High quality of the metal zipper,super smooth, give you a slippery experience ever.Not going to rust, tough and durable. [EFFECTIVE QUALITY] Effectively protect against damage from water, sand, dust, etc. [BIG SPACE FOR MEMORY CARD] 8 pages durable plastic pages - 22 memory card compartments Can put a lot of memory cards into one bag, so convenient to carry and pick cards. [SIMPLE AND NATURAL] Casual rounded design, meticulous with the workmanship.