This seatbelt cover is used on most standard vehicle seatbelts to notify emergency personnel that the person in the seatbelt may or may not respond to verbal communication as they are deaf, hard of hearing (HOH), they wear hearing aid(s), or they wear a cochlear implant. Made of polyester Permeant ink Velcro closure This attaches easily over existing seatbelts or strap of book bag. Flat size: 7.5" x 6. It can easily be moved from vehicle to vehicle thanks to the hook and loop closure. Grippable neoprene fabric to keep your seat belt cover in place