From stages to ground support to truss-style furniture, Global Truss has built their reputation on pro-grade materials and workmanship that hold up to the heaviest use. But if you lose a crucial part, it could derail your whole setup; so get yourself a few of these strong, durable Double-ended Conical Couplers. They're made of tough machined aluminum and precisely engineered to work flawlessly with your F31 through F34 and F44P Global Truss 50mm tubing. Simply insert one end of the 2-sided coupler into the tube of the pieces you want to connect, insert the included tapered shear pins, and fasten the R-clips (also included) to secure your trussing.