DescriptionThese clamping knob head are great replacement for your broken one with this knob. Screw on type design for easy install and with surface nice finish for comfortable grip. Widely used for lathe machine, mechanical equipment, instrument and apparatus,industry equipment.Features- Material: ABS + Stainless Steel - Size: 7.00X3.80X3.80cm/ 2.75X1.49X1.49inch.- This product is made of ABS and stainless steel, which makes it durable and long-lasting.. - It provide smooth adjustments in your various applications without being scratched. - Clamping handle screw knob is easy to install and remove without using additional tools. - You can use these star knobs nuts as jigs, fixtures, accessories and much more. - Fits for wood shop, radios, woodworking clamps and jigs, mechanical equipment, etc.