Description: This knob handle set is designed for machine tool. Made of high quality plastic material, durable for use. Comfortable for hold, long time using will not fatigue. Easy to install, convenient for use. Features: These knob handles are made of high quality plastic for durability and long service life. The surface is well polished which can offer a comfortable grip feeling. There are total ten pieces of knob handles in one set that you can use for many machine tools. These knob handles are universally fit and can be used for all types of machine tools. They are great accessories to replace your old or broken knob handles. Specification: Material: Plastic Application machine tool: universal Color: Black Thread: M4*16 Size: Approx. 15.2*10.4mm / 0.6*0.4inch Weight: 32g Package Included: 10 x Knob Handle 1、These knob handles are made of high quality plastic for durability and long service life. 2、The surface is well polished which can offer a comfortable grip feeling. 3、There are total ten pieces of knob handles in one set that you can use for many machine tools. 4、These knob handles are universally fit and can be used for all types of machine tools. 5、They are great accessories to replace your old or broken knob handles.