SIZE DIMENSION: fit for 5mm (0.2") or 6mm (0.24") diameter gym machine cable.DURABLE: The stopper part is made of duarable Rubber, soft but good impact resistant performance. The metal terminal core is made of solid steel, comes with socket set screws to fasten the cable to the terminal.SIMPLE DESIGN: Updated version soft rubber stopper, shock absorbtion.APPLICATION: This rubber stopper can be used in any occasion where need impact resistance, shock absorbtion function, with 5mm or 6mm diameter cable. It could reduce the impact force effectively and protect the equipment, prolong the working life. Specification: Material: Iron Size Chart: 6.5cmx4.5cm/2.56inchx1.77inch Package Includes: 1 Gym Machine Cable Accessories Note: Please allow slightly errors due to manual measurement and different monitors.