Nazalus Rolling Saddle Stool Chair offers the best versatility and value for your seating needs. Features: ?The exclusive Molded foam is specially molded around the seat base,Thicker and softer seat provide extra comfort. Premier thicker PVC leather, elegant stitching even for the bottom side of the seat. ?Adjustable height, from 22.4 to 30.3 inches, to delight your rigorous daily work. ?Durable stylish reinforced nylon casters for quiet smooth movement on the floor. ?Reinforced chrome metal base allow weight capacity high to 350lbs,and smooth rolling casters for extra stability and easy movements. Specifications: *Color:Black *Weight:21.6 lbs. *Weight Capacity:350lbs. *Adjustable Height Range:from 22.4"to 30.3" *Base Diameter:25.2” *Base Type:Chrome metal *Wheel Diameter:2.5” *Wheel Type:Reinforced nylon *Packing enclosed:1*seat cushion,1*backrest,1*footres,1*gas lift cylinder,1*seat base+wheels(set),1*screws,back link iron(set),1*easy use manual (Usually can be installed in less than 10 minutes) *Customer service: Please contact us for any issues.Your satisfaction is guaranteed.