Couplers are probably the coolest and at the same time the most versatile accessories to the aluminum trussing segments. These small gadgets are needed at almost any assembly, no matter, the size and complexity of the structure or installation being built. Whether the installation is meant for a small DJ at a wedding or for a rock band gig there is no way, the clamps would not play an important role in it. Apart from different coupler types, sizes, colors and designs, they also differ immensely in materials, they are made of, and their applications and functions.