NoTrax's exclusive GSII Technology produces the ultimate in durability and performance in environments where motor oils, industrial oils, hydraulic fluids, cutting fluids, transmission fluids and other caustic chemicals and greases are used. The Solid silicon carbide grit surface provides long-lasting traction. Drainage style mats feature large holes to facilitate the removal of liquids and debris. Mats measure 3/4" thick and easily snap together to allow for custom configurations.