SQ-C3.0-90 - 3.0 meter (9.84')The SQ C3. 0 90 is a 3. 0 meter (9. 84') diameter 12'' box truss circle. It is made from the same high quality 6082 T6 aluminum as the rest of our 12'' truss for high strength and a low self weight. The circle is comprised of four 90 arcs that can be purchased separately for custom designs or arch ways (please call for details). Features: 3. 0m circle (9. 84') 12'' aluminum box truss 2'' O. D. main tube 2MM (. 08'') wall thickness 4 x 90 arcs Connects