These rubber hole plugs are convenient and practical, with excellent texture, without being easily , 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: 80 x Grommets(4mm) 120 x Grommets(5mm) Grommets(6mm) 60 x Grommets(8mm) 60 x Grommets(10mm)