TGA Heavy Duty Wheelchair Power PackThe Heavy Duty Twin Wheel Powerpack attaches to any wheelchair in literally seconds. Once fitted you will never need to push the chair again. Simply walk behind with your thumb on the control and let the Powerpack do all the work for you. The Heavy Duty model was introduced to give more power to push heavier users up to 26 stone and with the added traction of twin wheels enables you to tackle tricky slopes and uneven terrain with confidence. The Heavy