Pegboard Hook Caps 👍 Good Protector 👍 Sufficient Quantity 👍 Easy Push to Install 👍 Classic Black Color Product Information Color: Black Material: Rubber Quantity: 500 Pieces Size: 3mm in inner diameter, 15mm in length Wide Range of Uses Perfect for 3mm diameter pegboard hook. These tiny caps can also be used to cover screws or wire rack, round tubing and so on. Notes Please check the size before buying. Since the rubber material is soft and elastic, we recommend choosing rubber end cap that is slightly smaller than the outer diameter of the product to be protected.