Star knob handle, screw-in. Made of high-quality plastic, , long life, easy to replace, easy to operate, screw the knob with a screw thread to clamp the knob on the black plastic hand star, screw-in tightening, nut knob, widely used in machinery and equipment, industrial equipment. Features - Color: Black. - Material: Plastic. - Size: 3.00X3.00X2.40cm/1.18X1.18X0.94in - Thread clamping knob black plastic hand knob star shape knob handle for machine tool. - Knob handles are made of plastic for durability and . - Great for comfortable hand grip, with ergonomic design and plays a non-slips effect without scratching your hands. - Universally fit and can be used for most types of machine tools. - Widely used for mechanical equipment, instrument and apparatus, food and industry equipment. Package list: 12 knobs