Click to Zoom * Smooth Rubber Runner is made of Thermoset vulcanized rubber (SR) with a overall thickness of 3/32. * Smooth Rubber Runner is excellent for hospitals, schools, office buildings and other areas where durable floor is required. * Smooth Rubber Runner meets or exceeds the federal specifications SS-T-312B, TYPE II, sheet rubber. * Smooth Rubber Runner comes in Cut Lengths" up to 60' i