Solid, one-piece 0.7 in. polyurethane construction. Designed to provide optimum blend of body support and comfort. Reduces pressure on the body by up to 40%. Ergonomically designed print guide to encourage progressive movement while standing. Anti-slip base. Contoured curl proof edging ensures the mats will remain totally flat. Built-in anti-microbial active ingredient will not wear away or wash off. Ideal for users who like to work without footwear. 10-year limited warranty. 20 x 32 in.