The unique design of the AIROMAT PVC Drainage Anti-Fatigue Mats features large square openings that mean less surface area to trap debris. 2/3 of the surface is open allowing moisture and debris to drain right through to the floor. PVC strips are extremely flexible and lightweight and offer superior anti-fatigue relief. Reversible mat has dual treads with safety ribs on each side to prevent slippage. Made in USA.NOTE: Custom-cut mats up to 50' long are available, call a Certified Product Specialist to order.