Anji Mountain Deluxe Natural Fiber Wooden Slat Roll-Up Chairmat without Lip, Dark Cherry, 72 x 48-Inch Designed for Berber/Loop carpet (up to 3/8-Inch thick, with carpet pad) and hard floors 8mm thicknearly 60% thicker than 5mm model for greater durability 4-Inch wide slatstwice as wide than the 5mm model for a smoother rolling experience Felt backing with non-slip gripper dots keeps mat in place Finished with premium, eco-friendly, UV-cured coating for ultimate protection