From the manufacturer Anti-Fatigue Floor Mat Stand in Durable Comfort. Ergonomically Engineered Designed to stimulate blood circulation and reduce fatigue on legs, back and feet by providing better pressure distribution and signicantly reducing contact stress. Patented Rubberised-Gel Foam 17mm thick and provides superior performance over thicker polyurethane foam competitors Patented Rubberised-Gel Foam with an ADA-Compliant Bevelled Edge Ensures mat will not roll-up, is trip-resistant and provides 18° angle for office chair to roll up on with ease. Non-Toxic & Flame Resistant Vinyl and BPA-free, supporting stricter environmental standards than most polyurethane foam competitors and meeting CAL 117 fire safety standards. Stand in Durable Comfort The Kensington Anti-Fatigue Mat combines superior gel comfort with professional durability to provide the perfect companion for standing workstations. Maximising the health benefits of standing while working, the Anti-Fatigue Mat is made of the highest quality materials and ergonomically engineered to reduce fatigue on legs, back and feet at home or the office. Ergonomically engineered to stimulate blood circulation and reduce fatigue on legs, back and feet by providing better pressure distribution and significantly reducing contact stressPatented rubberised-gel foam is 17mm thick and provides superior performance over thicker polyurethane foam competitorsNFSI certified anti-slip surface reduces slipping concerns and ensures mat stays in placeADA-compliant bevelled edge ensures mat will not roll-up, is trip-resistant and provides 18° angle for ofce chair to roll up on with easeNon-toxic & flame resistant materials are vinyl and BPA-free, supporting stricter environmental standards than most polyurethane foam competitors, meeting CAL 117 fire safety standards