Material:NY or PE
Plastic concave belt keeper loop, also called curved strap keeper buckle, retaining hoop loop, or retainer buckle, with arc-designed single side, which used to keep the rest of the webbing by holding multiple pieces of strap or webbing together, and stay firmly in one place. After inserting the webbing, you can push it back and forth along the webbing and tie up the excess webbing or straps.Used as collar or backpack strap keeper, webbing holder, etc.