Nitrile rubber anti fatigue mats work 24/7 to keep employees comfortable. The modular 3' x 3' 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, this solid surface design is best in moderately wet areas. Use the Solid with GritWorks! No. 574 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! - Solid No. 574(NBR) or Drainage No. 576(NBR)