The ToolMate Non-Slip Shelf Liner (17 3/4"W) reduces damage and noise caused by tools and parts shifting when in motion. Shelf Liner comes in 17 3/4" width to fit our 18" deep shelving and is sold by the foot with a 10' minimum purchase requirement or purchase in "Liner Kits" specific to each shelf unit in our Shelving Section and save 10%. Liner will help keep tools organized, and prevent shipping, shifting or sliding and is made of polyester webbing and coated with PCB foam. Fire-retardant, mold and mildew resistant and fully washable. Made in the USA, liner carries a 10-year limited warranty against manufacturing defects.