Green: Intermediate cleaning for the removal of surface layers of wax and to prepare the floor for the next process. Use wet: For macine operating up to 600rpm. 85mm push out centre hole prevents the floor pad from overheating. Pads hug uneven floors and can be used on both sides with no loss of efficiency. To extend the life of the pads, brush the pap srface while rinsing with clean water by using the centre push-out piece, and hang to dry.