Strong Lightweight Truss. 32mm TubeTriangle Size: 220 x 220 x 220mm Tube Size: 32mm Length: 0.4m Weight: 2.12kg. TRIO 220mm horizontal 90 degree 3-way corner-1 down 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. truss-trussing-trussing 4 way corner