Through running, fetching, playing, with the S-Biner TagLock, your dogs ID tag will always stay on.Any pet owner has experienced the disappointment of circular rings coming loose and loss of items secured to it. With the durable stainless steel S-Biner TagLock, you wont have to worry. Its also easily removed by pressing the inner carabiner wire, so if your dog likes to switch collars for fashion variety, its a cinch.Features:Durable stainless steel constructionFits most ID tags and collars or harnessesSecure stainless steel wire gate closure has center locking feature that locks both gatesSpecifications:Dimensions: 1 3/8"L x 5/8"W x 5/16"HWeight: 0.14oz.