ProX XT-FS34 Portable Truss Top or Floor Stand for F34 W/2 InchThe ProX XT FS34 Floor Stand Base W 2 Inch 50mm Mounting Tube is an all steel device that allows you to place lights with 2" Clamp mounting on F34 Truss Tops or even on the floor. You can securely mount lights and monitors from the top of a truss, without the use of a truss base top plate This solution is far more secure and safer in comparison to attaching a light or speaker on a base on top of the vertical trussing with straps. It can also be used