1. Suitable for 160mm drill bit2. High-quality silicone, stretchable and flexible3. Bearing transition design, electric drill running heat and wear4. The bearing replacement hole can be replaced separately, which is worry-free to use5. Double-layer dust-proof design, not easy to drop dust, easy to operate6. Ear hole design, suitable for various types of impact drills7. When hitting the ceiling, use iron wire to fix it, and it will not rotate with it8. Can be held by hand, don't worry about being worn by the drill bit9. Dimensions: 126x88x60mm10. Weight: 120 gramsSpecification: Package Weight One Package Weight 0.12kgs / 0.27lb One Package Size 16cm * 10cm * 10cm / 6.3inch * 3.94inch * 3.94inch Qty per Carton 242 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 242 pcs = 42834 pcs40HQ: 412 cartons * 242 pcs = 99704 pcs