Merits P312 DUALER is a Convertible Powerbase Wheelchair allows users to quickly and easily switch between rear-wheel drive and front-wheel drive, depending on the situation. 1. Easy to convert from RWD to FWD, 2-in-1 powerchair, ideal chair for indoor as well as outdoor use. 2. Unique compact size for maximum maneuverability in narrow space and walkway. 3. Height adjustable flip-up armrests can provide seat width adjusted. 4. Start with RWD and move to FWD by rotating the chair 180°, to enjoy direct-drive, direct-response feeling. 5. Turning radius is only 49cm/ 19.6” . 6. Low seat height of 18" provides excellent stability. 7. Power seat elevator R200 available. Official Website: http://www.meritshealth.com Product: http://www.merits.com.tw/english/products/detail-02.php?pid=13 Call 886-4-2359-4991 Fax 886-4-2359-4992 inquiry@merits.com.tw