Specification: Color: Silver Material: Manganese Steel Body Size: 50 x 10 x 0.5 mm/1.97 x 0.39 x 0.02 inch (L*W*T) Push Buttons Size: 10 x 8 mm/0.39 x 0.31 inch (L*Dia) Packing List: 8 x Spring Clips Advantage: Made of manganese steel and with a nickel-plated surface, it is flexible, has long-lasting elasticity, not easy to break and rust. It is hardened by a superb heat treatment process, making it more wear-resistant, sturdy, and durable for long service life. Instruction: Bend the clip, put the clip into the rod, snap the button clip into the hole, and push the outer tube until it catches the button.