NoTrax PVC Vinyl 522 Cushion-Lok Anti-Fatigue Drainage Mat, for Wet Areas, 30" Width x 60" Length x 7/8" Thickness, Black / Yellow Tough PVC based workstation mat with Grip-Step for extremely slippery environments Hundreds of portholes facilitate drainage Traction blades help resist slippage and keep worker out of spillage Six inch wide diamond-studded beveled ramps on 3 sides Full 7/8" thickness