Scuba Diving Dive Diver Waterproof Dry Box Case Container w/String Available Colors: Neon Yellow and Royal Blue Hard plastic waterproof case to prevent water entering Tested in 10ft deep Perfect for storing your cash, credit cards, hotel room card keys, keys, and etc. Inside measurement: 2-7/8"(L) x 5/8"(W) x 4-1/2"(H) Cord closure with slide lock attached