It is a Pair of Vertical truss towers Outrigger Leg Stabilizers with 2 clamps for F34 and 12" Bolted Truss and 2" Pipe Diameter. These Outrigger Leg Stabilizers are designed to use with truss towers and a steady price saver when you want to safely support truss towers. The outrigger brace is quick and easy to install on the truss chords of the truss tower. Pair of Vertical Truss Tower Leg Stabilizers Features: Adjustable Leveling Feet. Mounts and Couples to any size truss with 2" Pipe Diameter. 2x Heavy-duty clamps. 4‘ Ft. Width x 33" in. Height. Quick and easy installation.