SilverCrate+™ Ergonomic Design Anti Fatigue Standing Floor Foot MatINTRODUCING The SilverCrate+ Ergonomic Design Anti Fatigue Standing Floor Foot Mat Durable and Waterproof Materials: This comfort floor mat is made of anti skid rubber and SBR to ensure good elasticity and shock resistance. Clear texture ensures that you can stand on it steadily. In addition, the waterproof PU surface is easy to clean and you just need to wipe it with a wet towel. 3D Massage Function: There is a massage ball on both sides of the floor