Versa Runner Kitchen Mat 4'Versa Runner Kitchen Mat 4' Versa Runner Kitchen Mat is manufactured with MicroStop, an anti microbial rubber compound that inhibits the growth of bacteria and fungi to provide a cleaner and healthier work environment. The Versa Runner Kitchen Mat is designed to withstand harsh chemicals, greases, oils, and animal fats, creating a more effective slip resistant work surface. Reversible 3 8" thickness Made from a durable grease proof 100% Nitrile rubber