4' Big Blue Concrete Float The 4' Big Blue Concrete Float is used as a fine finish after screeding. It can be the end finish, or prior too power floating. The curved edges reduces the risk of digging into the concrete. The Knuckle head in conjunction with the clip on poles allows you too alter the angle at which the head attaches too the float. This allows the operator too lift the edge in the direction of travel thus allowing the float too glide across the concrete flattening and smoothing as it goes. We usually sell as a kit and can be purchased in widths of 3,4 and 6 feet. The kit includes the float, knuckle head and 3 1.8m clip on poles. Too see one of our youtube videos in action click HERE For our Multiquip small plant page visit HERE