Ergonomic:This saddle stool chair design for extra comfort on your back and spine, this design reduces painful pressure on your back. Comfortable : The seat cushion of this rolling saddle stool is a little thicker than the conventional one, which makes it more comfortable to sit on. Rotation :The cushions and wheels are free to rotate, you can use this saddle swivel stool to roll freely in the room.Suitable for dental, clinic kitchen, living room, office,, salon, etc. Sturdy :Comparing the easily damaged plastic base, the steel base makes the stool stronger and more load-bearing. Adjustable height : This stool chair has a larger range of adjustable height, from 19 to 25 inches. The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies. If the item is subject to FDA regulation. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical, Lab & Caregiving Furniture\Dental Examination Chairs". The seller is "zcdental" and is located in this country: US. This item can be shipped to United States.