Durable Medical Equipment/ WALKER & Stair Climbing Wheelchair by QQB Durable Medical Equipment. QQB's Durable Medical Equipment. The Stair Climbing Wheelchair and Walker are assistive devices designed for Accident,Stroke,M/S,Spina Bifida, COPD, Muscular Dystrophy,SCI clients and all others alike. Designed with Independence in mind. Please see our mission statement. Walkers,Wheelchairs & Assistive Devices by QQB Qqbmedical.com~Site InfoWhoisTrace RouteRBL Check