This Black Basic Foldable Walker Rollator comes assembled. Just put on the handle bars and it's ready to go. The aluminum rollator has a lightweight frame, making it easy to move around. It also has a comfy padded seat that lifts-up to provide access to the included storage basket. The rollator can be folded-up for easy storage. This model is adjustable in height and it features a wheel brakes lock for added safety. Basic Foldable Walker/Rollator, Black: Aluminum construction Lightweight frame is 12 lbs but has a weight capacity of 300 lbs. Comfortable padded seat lifts for access to the storage basket (included). Foldable rollator for easy storage Wheel brakes lock for safety. Seat dimensions: 12'' X 12'' Seat height: 20". Distance between handles bars: 18" Height adjustable in 1'' increments from 31 - 35'' 6" 'wheels Comes assembled, just attach the handle bars and it's ready to use.