The SkyStep™ ESD Anti Fatigue Mat is a 13mm thick standalone rubber mat, giving you the best anti-fatigue relief for maximum comfort. Static dissipative natural rubber compound, perfect for areas with static electricity such as server rooms. Additional sure footing when standing on the mat, sucks to the ground for non slipping effect. The mat makes full use of the air the passes through it, trapping it for a cushioning effect in chambers on the bottom of the mat. This gives you the best comfort on the market, allowing you to work on your feet all day to full effect. The anti fatigue mat is perfect to relief strain on feet, legs and the lower back.