... Hexad adjustable handle,Clearance item knob Hand knob, plastic knob, hand control knob, clamping knob, lobe ... different sizes which can meet your requirement. MaterialBakelite, steel, plastic, zinc alloySurfaced processZinc alloy: special black, oranger, ... or blue plastic coatedBakelite: black / orange, glossy finishSteel: sand-blasted / chrome brightPlastic: matt blackAssemblyStainless steel or common ...