Wheel made of metal tube constructed, 100cm dia wheel revolve smoothly with C.I. drum & is fitted with calibrated sensitive resistance mechanism, the resistance is controlable from zero to maximum at 360°C. Scale is provided on the drum to measure and record the degree of revolution from either direction. Arc motion can be varied from 26cm to 86cm dia. Fitted with attachment to raise or lower the wheel at the desired height for each patient. Mounted on three laminated hardwood wall boards. Size:43x43x13inch.