Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si [Material]Made up of zinc alloy material, anticorrosion, not easy to rust, durable and sturdy [Features]High strength and hardness, small size, comfortable to wear. [Accurate]With high centering accuracy as as a clamping range. [Application]self-centering, widely used for woodworking lathe. [ Size]The chuck is small in volume, easy to use. Colour: silver Material: zinc alloy Package Contents: 1 x connecting rod 1 x three- chuck 2 x short sticks Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.