Double-sided Rubber Gaskets are rubber materials, strong flexibility, folding resistance, abrasion resistance, pressure resistance,high temperature resistance, aging resistance, long lasting,cushioning and shock absorption, safe, non-toxic and tasteless, with exquisite appearance. Product Features:The black rubber gasket not only helps us solve the trouble of wire and cable management, but also prevents the wire and cable from touching the pointed metal and protects the cable from dust and rain. Easy To Use:We equip the product with a retractable utility knife,when in use, you can adjust the diameter of the rubber gasket according to the thickness of your own cable,and cut freely. Wide Use:Firewall plug gaskets can be used in electrical appliances,office equipment,pumps,cylinders,valves,various pipelines,etc. What You Will Get:1-1/2inch*4Pcs,5/8inch*12Pcs,1-3/16inch*8Pcs,1inch*8Pcs,7/8inch*10Pcs,13/16inch*11pcs + 1Pcs retractable utility knife.A total of 52Pcs Rubber Grommet,enough replacement to suit your needs.The are placed in a transparent plastic box, each size of rubber grommet are sorted separately which is easy to transport and distinguish.