Nov 25, · China Black Square Crane Outrigger Pads HDPE Plastic Crane Leg HNOKAY Black Square Crane Outrigger Pads HDPE Plastic Crane Leg Support Pad are available in three categories; Medium Duty (1.0″ thick), Heavy Duty (2.0″ thick) and Super Duty (3.0″ and 4.0″ thick) and are designed for equipment typically up to 100 tons in capacity.