Assortment Of Washers The Protective Coils Are Glued To Metal And Similar Articles, So That Rough Iron Holes And Wooden Holes Become Smooth Exits. When The Cable Passes Through The Middle, The Protective Cable Is Not Cut. Simple DesignAs The Assembly Structure, Simple, But Compact And Standardized Already, It Is Very Easy To Install And Replace. And It Needs A Plastic Storage Box To Store The Cable Sealing Rings To Avoid Confusion With Different Sizes. Multiple SizeRubber Washer Includes 8 Sizes, 40 Pieces Of 1/4 Inch, 5/16 Inch And 3/8 Inch; 25 Pieces Of 7/16 Inch; 20 Pieces Of 1/2 Inch; 5 Pieces Of 1/4 Inch, 5/16 Inch And 3/8 Inch. Made With Nbr Nitrile Rubber (Nbr), A Very Soft Rubber, Is Very Easy To Install. It Has Excellent Abrasion And Heat Resistance. Help Air Seals Work Better. Washer ApplicationsUsed In Automobiles, Rv Wiring Operations, Marine Valves, Leaks, Pipe Repairs And Other Necessary Rubber Seals, Repair Shops, Electricians, Janitors, Operators, Plumbers And Other Good Toolboxes.