Dual wheel casters provide ease of movement around the space. The small frame of this chair will not take up a lot of space if working in a small area. 5.5'' Height Range Adjustment. 17 x 16.5 x 34.8 inches.This item is in the category "eBay Motors\Automotive Tools & Supplies\Shop Equipment & Supplies\Roller Seats & Creepers". The seller is "aknalu" and is located in this country: US. This item can be shipped to United States.