Made From Solid Aluminum with a Hard Coat Anodized FinishKnurl Diamond Grip and Ball Bearing WheelMade From Solid Aluminum, with a Hard Coat Anodized Finish Knurl Diamond Grip and a Ball Bearing Wheel This CRL Vinyl Roller Tool is made from a Solid Aluminum, with a Hard Coat Anodized Finish. This tool offers a Knurl Diamond Grip and a Ball Bearing Wheel which makes any tough job easier.