The PierLiving original "P Anti-Vibration Mat" has rubber elasticity, and has just the right amount of gaps inside to greatly reduce the sound of impact on the floor. Please note before purchase / Although in rare cases the product may look white, this is the adhesive used in manufacturing, this is not a quality problem. Since it is a rubber product, it has a unique smell of rubber and adhesive smell. It will decrease over time, but please ventilate as much as possible for a while after installation. Color transfer may occur depending on the material of the flooring. For use on solid wood, unfinished flooring or PVC floors, use protective sheets. Bending or dropping may cause cracks and breaks. When used on floor heating floors, the warmth is difficult to transfer, so when the set temperature is increased, it may cause the flooring to deteriorate and the floor heating failure. Mold may occur if used in rooms with high humidity. Please remove it from time to time to ventilate. If you incinerate the edges of the product or after use, it may cause harmful gases. If disposal is disposed, please dispose the product in a proper manner according to the respective municipal sorting standards.