Solid, ergonomically designed polyurethane construction with contoured non-linear profile of between 0.8” to 2.0” to optimize posture movement, blood flow and prolonged standing comfort. Allows individual foot rocking movement to further stimulate blood flow. Use as a foot operated push/pull facility for moving the mat into place when changing from sitting to standing. Embossed top surface. Anti-slip base. Built-in active anti-microbial ingredient will not wear away or wash off. 10-year limited warranty. 26 x 36"