SE PH17DI ID Holder with Vial and Key Ring 1-3/4" (12 Pack) 12 pc ID holder for carrying ID's, emergency contact information, small items, and more Material: chrome plated aluminum body with round bottom Waterproof with O-RING seal Includes plastic clear vial with screw on cap 1" x 1/4" Dimensions ID holder: length 1-3/4" x diameter 1/2"