The knee chair has an ergonomic design that promotes correct posture. By supporting your knees and keeping your thighs at a low angle, it balances your weight and relieves stress on the spine to relieve back pain, the armrests provide firm but cushioned support as you sit or rise. The seat cushions are filled with abundant cotton bound in synthetic leather for superior comfort, breathability, and ease of cleaning.The steel frame adjusts up or down easily to let you find your height and easily.These nimble castors move quickly, rolling easily around your home or office when it’s time to check something or grab a snack, they also lock firmly once you’re sure you are where you want to be. The perfect office or home office desk chair, it also helps keep you active and healthy if you spend lots of time at your computer gaming desk as well.