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The ProX 3' X 3' Steel Base Plate for Square Truss is part of the Pro Truss square system for building temporary structures at events where a DJ needs to mount lights, speakers, etc. The base plate mounts to the bottom of a square 12" truss, providing a flat surface to support the structure. 36"L x 36"W x 1"H, 105 lbs
All Pro Truss products are compatible to connect with many other manufacturers' products.