Our Coin Rubber Mats are made of natural rubber and the matting provides years of trouble-free service. This is not a cheap rubber. This is a new anti-slip ribbed surface top, non-porous, non-absorbent, urine proof, top quality natural rubber. Easy to clean and disinfect. Non-porous, non-absorbent, urine proof, will not swell, curl or lift. Dust, spore, smell & allergy free for humans and animals. Insulation from cold, slip resistant when wet. Tough and long lasting.