materials: metal Main color: silver This knob makes a great replacement for a broken one. Widely used in lathes, mechanical equipment, instruments and industrial equipment. Package Contents: 2 x Clamping Handles 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.