(1) A mechanical signalling device must (a) be fitted to the right side of the light vehicle; and(b) be able to be operated by the driver from a normal driving position; and(c) consist of a white or yellow representation of an open human hand at least 150 millimetres long; and(d) be constructed so that the driver of the light vehicle can keep the device (i) in a neutral position so that it is unlikely that the driver of another vehicle or anyone else would regard it as a signal; and(ii) in a horizontal position with the palm of the hand facing forwards and the fingers pointing out at a right angle to the vehicle to signal an intention to turn or move right; and(iii) with the palm of the hand facing forwards and the fingers pointing upwards to signal an intention to stop or reduce speed suddenly.(2) When the mechanical signalling device is in a position specified in subregulation (1)(d)(ii) or (iii) , the complete hand must be clearly visible from both the front and the rear of the light vehicle, at a distance of 30 metres.