These portable hydraulic cushions are placed onto a chair to transform it into an automatic lifting seat. Easy to adjust to each user's weight, they provide a stable, gentle lift that supports up to 80 percent of the user's weight. It has a built in carry handle and can be flattened for transport. Available in two weight ranges. The UpEasy has a washable blue cover and a standard foam cushion. The Uplift has a wipe clean, waterproof black cover and a memory foam cushion for extra comfort. Width 17inch Depth 19inch