SE PH215-5 Assorted Color Waterproof Wide Mouth ID Holder (5 PC.) Wide mouth ID holder with a length of 2-1/2" and a diameter of 3/4" Aluminum body with a plastic-lined interior Waterproof with an O-Ring seal Comes in an assortment of colors: black, blue, green, red, and silver Great for carrying emergency or personal information on your keychain