The TORQUE DRIVE electro-brush is responsible for monitoring the resistance on the cleaning brush shaft (360 samples per second) and automatically adapts the power of the machine to the type of surface being vacuumed. It makes it possible to thoroughly clean both carpet and floors with much harder characteristics, without having to change the cleaning tip. The replaceable roller is equipped with black anti-static carbon fibres and stiff nylon bristles. Shaft colour: nickel-plated