Why should you choose this item? First, Saddle seat design for extra comfort on your back and spine, increase comfort and productivity. Our saddle seat made of 100% molded foam,very comfortable and elastic, not deformed.It can give you a good support and long-term comfort, you can use it for about 8 hours a day. Second, With advanced technology, the back of the saddle is smooth and round. It has no ugly line compared to some low-end products, which makes the product live longer. Finally, Adjustable height: 21.6 "-29.5",higher than ordinary stools, more suitable for a variety of scenarios. At the same time, the wheels adopt the high-grade PU wheels, which are very smooth and will not scratch the floor.Suitable for kitchen, living room,office, clinic, salon,etc. Weight capacity :280 lbs. *** Attention : We are very sorry about the problem of wheel damage in the comments (the probability is about 0.5%), but since April 2019, we upgraded the base and the wheel to avoid the problem happen again.If you have concerns regarding the wheels, feel confident in making the purchase. (In addition, any non-human damage, contact us within one year, you will get a replacement? ***