Our 4-jaw lathe chuck is made of zinc alloy material, which is not easy to rust. It is sturdy and can serve you for a long time. This wood lathe chuck has high centering accuracy and wide clamping range. It has high hardness and comfortable to use. Our wood lathe chuck has compact size of 21x48mm, easy to use. The small size takes up less space than larger chucks. Our wood lathe chuck adopts 3-jaw and design, which is widely used for woodworking lathes. This kit is convenient to use. Product Name:4-Jaw Lathe Chuck Colour:Silver Material:Metal Size:Four-Jaw Chuck:21x48mm Package Contents: 1 x 4-Jaw Chuck 1 x Connecting Rod 1 x hex Wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.