Strong Lightweight Truss. 32mm TubeTriangle Size: 220 x 220 x 220mm Tube Size: 32mm Weight: 1.66kg. TRIO 220mm horizontal 135 degree 2-way corner. 32mm Diameter main tube and supplied without couplers. The straight lengths are supplied with couplers- so generally you end up with enough joining parts to form the shape you need- but the coupling sets are available separately- our Code: DE-KITS Use six of these 135 Degree corners to make a Octagon shape- adding straight lengths to adjust the overall size.. truss-trussing-trussing 135 degree