The model 95057 is a guide roller manufactured by Norelem. Material of the tread is Extrathane, with hardness 92° shore A. It has high rebound resilience, and can withstand use over an extended span of time. The unit also has high cut and tear propagation resistance. Other resistance include abrasion and low rolling. It is non-staining, floor-saving, elastic and produces very low noise when in use.