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http://justwalkers.com/rollator-transport-chair.html
The Medline Rollator Transport Chair is a versatile mobility aid that converts from a rollator to a transport chair with easy tool-free adjustment. It has a nylon padded backrest with handgrips to hold onto or flip over to change the function of the device. The handles are height adjustable and feature bicycle-style loop-lock handbrakes with ergonomic handgrips. The Rollator Transport Chair also includes an adjustable seat belt to secure the user in place. It holds up to 250 lbs and folds easily for storage or transportation purposes.
Approximate user height: 5'2"-5'11"
Height adjustments: 31"-36"
Nylon padded backrest and adjustable seatbelt
Secure loop-lock handbrakes with ergonomic handgrips
Folds for easy storage and transport
Weighs: 19 lbs.
Weight capacity: 250 lbs.