Scuba Choice Scuba Diving Dive Waterproof Black Dry Box Case Container with Lanyard Good for 100ft (30m) deep Hard plastic waterproof case to prevent water entering Soft cushion inside to protect your goods and prevent scratches. Perfect for storing your cash, credit cards, hotel room card keys, keys, phones and etc. Inside measurement: 6-1/4" x 3-1/2" x 1-1/3" (158mm x 90mm x 35mm) Outside measurement: 7-1/3" x 4-3/5" x 1-3/4" (186mm x 117mm x 44mm)