Material:PVC
The difference between L7 and L7B is that L7B is softer and feels like rubber.
Plastic concave belt keeper loop, also called square loop buckle, retaining hoop loop, retainer buckle, featrured by its single side arc-designed, which used to keep the rest of the webbing by holding multiple pieces of strap or webbing together, the strap keeper can move forward and back along the webbing after inserting into it. Used as collar or backpack strap keeper, webbing stay holder, etc.