Blade RunnerTM features a corrugated rib top surface that allows for sure footing and is easy to sweep clean. The NoTrax exclusive Dyna-Shield PVC sponge is manufactured with a tough protective top layer that provides long lasting wear and outperforms the competition in tear resistance and tensile strength. Designed for use in medium duty dry work areas such as labs, packaging stations, and shipping departments where traffic flows along the length of the mat. Unlike urethane or acrylic top coats that are applied after the mat is produced, Dyna-Shield is manufactured into the mat to provide a long-wearing protection to the sponge anti-fatigue mat - Outperforms competitive products in tear resistance and tensile strength. Four top patterns to fi t the needs of work stations where longer lasting fatigue protection is required.