Nitrile rubber anti fatigue mats work 24/7 to keep employees comfortable. The modular 3' x 3' drainage mat is perfect for single workstations, or to interlock on all four sides to cover large areas. Very substantial (5/8" thick), yet exceptionally resilient, the perforated surface design is best in wet areas. Use the 24/Seven GritWorks! No. 576 in very slippery areas. Optional Yellow and Black borders provide safe access.Nitrile resists Petroleum-based Fluids – these include petrochemicals such as Hydrocarbons, Naphthenes, Paraffins and Petroleum distillates. For additional traction use the Nitrile Gritworks! - Drainage No. 576(NBR)