Features: This barbells bar spring lock is designed with two handle,comfortable to hold,let you can quickly open the clamp. You can use it on the barbells bar, so the barbells slices will not move or slide when you use the barbells. It is make of strong and enduring plastic and metal,it is wear resistant and not easy to damaged. It's small and light weight,you can easily store it,and they are convenient to carry. Rubber Grip Handle allows comfortable and easy to method to remove. Specifications: Component: Metal and Plastic Type: 2.5CM/2.8CM/3.0CM 2.5CM Length: 8cm/3.15inch 2.8CM Length: 8.5cm/3.35inch 3.0CM Length: 8.5cm/3.35inch Package Includes: 4Pcs barbells Clamp note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.