Easy and Safe Transport of Heavy Machinery and Household Appliances. Smooth Movement and 360 Degree Rotation Improves Work Efficiency and Safety. When Something Need to Be Moved, the Heavy Machine Dolly Skate Roller Machinery Mover with 360 Degree Rotation Cap Is Best Choice for You. This Machinery Mover Works Great. the Wheels Roll Smoothly and Easily. the Rollers on Each One Make It Easy to Turn the Mover with a Load on It. the Skates Allow You to Easily Move the Machine into Position to Be Required. Specifications Material Type: Cast Steel + Pu The Max Load: 8t (17,600 Lbs / 8000 Kg) Normal Load: 4t (8800 Lbs / 4000kg) Cap: 360 Degree Rotation Rollers WheelsQuantity: 6 Roller Size: 3.14 X 2.75inch (8 X 7cm) Base (L X W): 12.1 X 8.3 Inch (30.7 X 21.1 Cm) Load Capacity: Dimensions.