Anti-tip wheels

Very small wheels attached to the rear end of the anti-tip device that touches the ground. It is very useful when the anti-tip device isnot in use as it act as another set of wheels which make operation of the chair smooth.

Anti-tip device help your powered chair from tipping over in certain situations though you should always be very carefull as it is not 100% foolproof. It only work at a particular angle and situation.