These rubber hole plugs are convenient and practical, with excellent texture, without being easily damaged, can withstand long servicing time. Adopting premium rubber materials with good workmanship, they are professional, can be perfect for many uses like electrical wiring and more. Features -Color:Black -Material:Rubber -Size:1.00X1.00X0.50cm/0.39X0.39X0.20in -Specification: 4mm, 5mm, 6mm, 8mm, 10mm. - These rubber grommets for wiring can help to offer protection for wire from acute metal edges and keep the cable from rain and . - Premium and flexible materials, strong and hard, with good insulation and water-resistant properties. - Widely applied for bearing, pump, door, window, drain plugs, electric appliance, chemical , water , and etc. - Suitable for electrical cabinet, box outlet protection seal and so on, easy to use, take and store. - Different sizes can better fit your demands of using, these rubber ring grommets bring you convenience. Package list: 20 x Grommets(4mm) 30 x Grommets(5mm) 25 x Grommets(6mm) 15 x Grommets(8mm) 15 x Grommets(10mm)