Designed for indoor use, this OER® Authorized Diamond Blue™ cover is manufactured using an economical single-layer non-woven material that offers excellent protection from dust and dirt penetration. Each cover is sewn with double-stiched seams to add strength and durability to the cover and Neoprene elastic is sewn into the front and rear hems to help secure the cover.Highlights:For Indoor UseSingle-Layer Non-Woven Material For Dust and Dirt ProtectionNon-Scratch Grommets Installed onto Each Side of Cover to Allow the Use of a Tie-Strap or Loc