Available: in stock It is used as a buckle, which can adjust the length of strap. It can be used on bags, bum bags, backpacks, etc. It is entirely made of plastic rectangular shape. Internal dimensions: length 25 mm, width 5 mm. Dimensions: length 29 mm, width 20 mm. See the photo. Width of pulling hole: 25 mm Dimensions: 29 x 20 mm 100% plastic