We'Re All Mad Here Carpet Specifications:Dimensions: 15.7"In Width X 23.5" In LengthMaterial: 100% Polyester Fiber (Polyester), Flannel Fabric, Bottom Non-Woven Fabric Dot Plastic, Thickness 0.8cmNote 1: Shake, Vacuum, Or Sweep Out Loose Debris. If The Mat Is Fairly Dry, This May Be All You Need To Do. It'S A Good First Step For Wet Cleaning.Note 2: Machine Washes In Cold Water Without Detergent, Delicate Cycle. Hang Dry The Rugs Or Tumble Dry With Low Heat. Remove Promptly From Dryer.Note 3: Water Under Door Mats Can Cause It To Slip, Please Make Sure A Dry Surface Before Putting The Rug In Place For Better Anti-Skid Performance.