Hand knob, plastic knob, hand control knob, clamping knob, lobe knob. 1.Supply all kinds of hand knobs 2.Specialized in machine tool accessories 3.Excellent quality and competitive priceSunrise Groupis professional in manufacturing machine tool accessories, with a history of several years. Kinds ofhand knob, plastic knob, hand control knob, clamping knob, lobe knob in various styles and different sizes which can meet your requirement. Material Bakelite, plastic, Surfaced process Zinc alloy: special black, oranger, red, silver orblue plastic coated Bakelite: black / orange, glossy finish Plastic: matt black Assembly Stainless steel or common plated steel Special purpose non-standard operating accessories areavailable upon request.