The Clip Cose buckle, 30mm in size and black, reference 140209, is a quick-release plastic buckle, composed of two pieces that snap together, used to close belts, backpack straps, collars and other accessories where an easy one-handed closure is desired. Black is one of the most versatile colors in the range, suitable for backpacks and accessories of any style. It is a very popular accessory in leather goods and sewing projects for functional accessories.