Product Name : Star Knob;Type : Screw OnHead Diameter : 40mm / 1.57 inch;Thread Diameter : 10mm / 0.39 inchTotal Height : 24mm;Material : Metal, PlasticColor : Silver Tone, BlackWeight : 62g;Wonderful replacement for your broken one with this Star Knob.Screw on type design for easy install and with surface nice finish for comfortable grip.Widely used for mechanical equipment, instrument and apparatus,food and pharmaceutical industry equipment.Package Content : 2 x Star KnobOnly the above package content, other products are not included.Note: Light 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.