[Special star shape design] ——- This knob adopts a special star design, which is very suitable for comfortable grip, ergonomic design, non-slip effect, and will not scratch your hands. The knob handle is made of high-quality material, which is durable and has a long service life.[Wide application] —– Threaded clamping knob, black plastic handle, star knob handle, suitable for machine tools. Star manual knob black plastic screw-in handle clamping knob is suitable for mechanical equipment, instruments and instruments.colour:BlackMaterial:plasticPackage Contents:15 x M10 Star Shape Hand KnobsOnly the above package content, other products are not included.Note: Light shooting 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.