This is a unique stool and perching chair combined, ideal for collaborative lounge and even sit/stand workplaces,can easily accommodate users with different heights and promotes active seating by encouraging movement to prevent the build-up of lactic acids in muscles and reduces the risk of back problems. The structure is covered with thick sponge and wrapped in soft elastic upholstery to keep you comfortable. A great all-rounder, especially for those who are rather restless.