Nevada Weighing WheelChair Scale. Full 2 year manufacturers warranty. Capacity of 800 LB x 0.2 LBS or 362 KG's. Super heavy duty steel construction. Aluminum weighing surface of 31 x 28 inches. Total platform size of 42.5 x 39 inches. Railing is 3 feet off floor and 22 inches wide. Easy up ramp. Attached wheels for easy portability. Railing folds down for easy moving. Lightweight and rigid construction. Zero/Tare function. A/C adapter or 6 AA batteries (not included) for portability. Internal wiring. Large 1 inch high LCD digits on indicator for easy read outs. Hold feature. Will hold the displayed weight after item is removed from scale. Auto shut off (selectable). Auto backlight (selectable). Calibration with KG or LB. Anycal calibration software installed. This software allows you to calibrate with any known weight. No test weights needed. Ships via truck service.