"Note: We noticed a customer report that the piston was broken at the beginning of use. We are very sorry for the occurrence of such a problem. Once such a problem occurs, whether it is the initial installation or long-term use, please contact us by email or Amazon, and we will arrange the replacement for you immediately. Why should you choose this saddle stool? First, Saddle seat design for comfort on the back and spine, to increase comfort and productivity. Our saddle chair is made from 100% molded foam, very comfortable and elastic, not deformed.It can bring you good support and long-term comfort, you can use it about 8 hours a day. Second, With advanced technology, the massage stool on the back is smooth and round. This does not change anything to some products, which makes it live longer. Finally, Adjustable height: from 54 to 74 cm, higher than ordinary saddles, more suitable for a variety of scenarios. At the same time, the wheels adopt high-quality PU wheels, which are very smooth and do not scratch the floor. Suitable for kitchen, living room, office, clinic, living room, etc. Warranty service: 1 year. Weight capacity: 150 kg 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 on this saddle swivel stool enable unrestricted rotation, allowing for easy movement throughout the room. This stool is ideal for use in various spaces, including kitchen, living room, offices, clinic, salon, and more. Sturdy :Comparing the easily damaged plastic base, the metal base makes the stool stronger and more load-bearing.Weight capacity: 400 lbs. Adjustable height : This stool chair has a larger range of adjustable height,from 21 to 28 inches, about 4 inches taller than regular stools. Care instructions: Wipe with Damp Cloth Shape: Round Unit Count: 1.0 Count Number of Pieces: 1 Size: Without Backrest UPC: 700401826741 ASIN: B07F8NXBXD Product Dimensions: 0.15"D x 0.15"W x 0.15"H Is Discontinued By Manufacturer: No Seat Material Type: Faux Leather Furniture Finish: Alloy Steel Required Assembly: Yes Seat height: 20 Inches Item Height: 0.39 centimeters Seat Height: 20 Inches Manufacturer: Antlu Maximum recommended load: 400 Pounds Frame Material: Metal Style: Classic Number of pieces: 1 Seat Material: Faux Leather Batteries required: No Seat Width: 14 Inches Maximum Weight Recommendation: 400 Pounds Color: Black Item model number: no Frame Material Type: Metal Assembly required: Yes Brand: Antlu Brand Name: Antlu Leg Style: Inclined legs Product Care Instructions: Wipe with Damp Cloth Assembly Required: Yes Style Name: Classic Item Dimensions D x W x H: 0.15"D x 0.15"W x 0.15"H Item Weight: 4.5 Kilograms"