The Balloon Cushion Wheel is a rounded solid rubber wheel that offers a quiet smooth ride. It is highly flexible so it will flatten to accommodate heavy loads and return to its original shape after unloading. The tread surface is rounded to minimize friction which allows easier turning and load moving. The results are less work and less fatigue. Comes with a polyolefin centered hub and allows a maximum load capacity of about 550 pounds. Available in two options. For drivability and a smooth quie t ride order the Balloon Cushion wheel