The ergonomically designed kneeling chair is designed to best fit the natural form of the human body and meet the optimal comfortable size for human activities. Kneeling helps keep your back and spine straight and avoids fatigue and discomfort associated with prolonged sitting. Comes with a set of casters. The kneeling chair is designed with a sturdy steel base for durability. Maximum load: 300 lbs. The castors allow for rotation and sliding, and can be locked when it is necessary to fix. Thick leather seats, headrests and knee pads provide maximum comfort for your body. All of our cushions are made from recycled foam plastic to make you sit comfortably without getting caught in the cushions. Mold foam pads are very friendly for hips and knees, ensuring cool comfort throughout the day. The angled cushions work seamlessly with your back to help distribute the pressure evenly. Unique armrest design to let your arms relax.