The Invacare TDX SP Rehab Seat Power Wheelchair is a compact powered wheelchair designed for use by individuals with mobility disabilities or spinal cord injury. FRAME (LxW): 35.25 x 24 inches without front riggings. It has a turning radius of 22 inches and a ground clearance of 3 inches. CONTROLS: MK690/SPJ+. MWD: This wheel chair utilizes True Center Wheel drive and Enhanced SureStep allowing the user to drive over thresholds of up to 3 inches. SEAT L x W: 12 to 22 x 12 to 24 inches. The floor-to-seat heights at zero degrees are 16.5, 18.5 and 20.5 inches. For floor-to-seat height at 5 degrees, add one-half inch to each measurement. The back angle is adjustable from 85 to 105 degrees. CASTERS: 6 x 2 inch flat-free front and rear casters. WHEELS: 14 x 3 inch center drive wheels. POWER: Uses two 22NF batteries. SPEEDS: 6 miles per hour. CAPACITY: 300 pounds. WEIGHT: 264 pounds with batteries, 166 pounds without batteries. WARRANTY: Lifetime warranty on the base frame; seat frame, 36 months; electronics, 12 months; motor/gearbox, 18 months.