Dust Removal - Reduces cleaning time and provides clean, safer air for the user Durable Materials: This shroud is made of high quality PVC and copper to make sure it has a long working time along with light weight. Convenient Operation: Integrated spindle lock on the disc grinder provides faster and easier replacement of abrasive wheels; Faucet for greater control, comfort and versatility in all applications. Safety Protection and Durable: When working, the protective cover of the portable grinder will prevent sparks and metal chips during use to protect you from injury. How to measure the inside diameter? SpecificationsMaterialsPVC/CopperProduct Weight360G/580GRuce Size120*43MM/160*43MM/160*48MMComping Contents Dust Cover Set × 1NoteDue to manual measurement, please allow slight deviation in measurement. Due to different display and lighting effects, the actual color of the item may be slightly different from the color displayed on the pictures. Undefined