Superior Manufacturing NoTrax Niru Cushion-Ease Black 3/4" Ramp Safety/Anti-Fatigue Mat with holes measuring 3' X 3' is made of 100% durable nitrile rubber compound that can withstand chemicals, oils and greases. Anti-Fatigue Mat has large hole drainage system that helps removal of liquid and debris from the work area. It can be used for rough, wet environments where caustic, cutting fluids and animal fats are present. Modular design is ideal to use with NoTrax 551 M.D and is well suited for custom configurations.