Switch between sitting and standing with an anti-fatigue chair mat to give you surprising comfort throughout your workday. The sit or stand mat offers the smartest solution for working healthier. We all know that sitting for hours is an unhealthy practice, while standing helps strengthen leg muscles, improves your balance and promotes healthy blood flow. The foam cushion provides you with a firm, but cushioned place to stand in comfort. When ready to sit, simply unfold the hinged cushion flap for a full sized chair mat. The vinyl mat provides a durable rolling surface as well as floor protection.Office Chair Mat with Anti-Fatigue Foam Cushion.375" Foam Hinged Cushion Flap provides comfort while standingUnfolds into Full Size Ergonomic Floor MatVinyl Mat provides durable rolling surfaceFluted Underside grips carpetDesigned for Low Pile Carpet up to .125" thickDesigned for Hard Surface FloorsDesigned for Commercial and Residential Use