1,saddle stand: Ergonomic Design: Saddle stool with ergonomic seat design can comprehensively help to correct your postures and positions at work to release your backpains and relax your muscles 2,saddle stand: Adjustable Height: Adjustable height from 43-53cm (16 7/8-20 7/8") to delight your rigorous daily work. It easily controlled with a hand lever. Max load capacity 200kg (440lb) 3,saddle stand: Easy to Move: Durable casters for quiet smooth movement on the floor. Smooth rolling stool casters allow for easy movements and noisy-free environment 4,saddle stand: Versatile Use: The swivel rolling saddle stool is specifically designed for people who work long hours on their seats & moves frequently including dental assistants, medical professionals, office workers, tattooer,artist and more 5,saddle stand: Comfortable Seat: The saddle chair is contoured to provide maximum comfort and support. The surface with thickened leather, filled with high elasticity sponge inside, soft and comfortable, wear-resistant and durable. It fits the human body perfectly, bringing a more comfortable experience