The Sit or Stand Mat offers a unique, dual sit to stand desk solution that promotes good health and increased productivity. Innovative hinge folds for cushion when standing and unfolds to full size chairmat while sitting. Chairmat thickness 1/8″, Cushioned area is 1/2″ thick. Fluted underside grips low pile carpets up to 3/8″ thick including padding and hard floors: laminate, wood, tile, and other hard floor surfaces. Made in the USA. 1-year Limited Warranty. US Patent Pending.