Saddle seat stool design for extra comfort on your back and spine, help you maintain good posture, increase comfort and productivity. After you buy this item, the first step is to assemble it. Assemble: This stool is very easy to assemble, you don't need any tools, and according to the instructions, it only takes 2 steps to complete the assembly. The second step is then to use it. Use: After assembly, you can use the saddle swivel chair move freely in the office, kitchen or salon. Supplementary explanation,The wheels of this stool are made of Polyurethane and rubber, which will not scratch the floor,safe for all floors. In addition, the seat cushion of the saddle stool chair is thick and ergonomic, so it is very comfortable to sit up. Finally , if the product experiences non-human-induced damage within one year, please contact us, and we will provide replacement parts or other assistance. Weight capacity:400 lbs.