These Camelback Gel Earmuff Rings are compatible with most 3M PELTOR Headsets, featuring a super-thin polyurethane skin with a double-hump top face design and a silicon gel-filled bladder with a Confor foam backing. This pair of gel sealing rings feature a super-thin polyurethane skin with a double-hump top face design and a silicon gel-filled bladder with a Confor foam backing. Compatible with most 3M PELTOR Headsets.