485 Capacity: 350 lb x 4 oz Features: -Mechanical wheelchair scale.-Available in 350 lbs x 4 oz. and 308.65 lbs x 3.5 oz. capacity.-Built for use with any standard-size wheelchair.-Offers the utmost in comfort for wheelchair-bound patients.-Convenience for nursing personnel and accuracy for important medical records. Dimensions: -Ramp size: 27" W x 30" D.