Modular 18" Roll-offs only - Set of 2Our Scale Pad Leveling Fixture features a modular design, giving you added flexibility. It starts with individual Billet aluminum levelers (not included with PN 72851). These are CNC machined for extreme accuracy and have a full floor for the best scale pad support and deflection strength. Swivel adjusting feet pop out to make storage easier. This base holds the scale pad. Roll offs: These attach to the Billet levelers with clip on brackets and