SET2: 2 x Star Knob + 5 x Clamping KnobsProduct Name : Clamping KnobType : ScrewHead Diameter : 32mmFemale Thread Dia : M8Total Height : 20mm/0.8 inchWonderful replacement for your broken one with this Star Knob.Screw on type design for easy install and with surface nice finish for comfortable grip.Product Name : Star Knob;Type : Screw OnHead Diameter : 50mm / 1.97 inchThread Diameter : 8mm / 0.31 inchTotal Height : 33mm / 1.3 inchMaterial : Metal, PlasticColor: BlackPackage Contents:2 x Star Knob5 x Clamping KnobsOnly 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.