light truss, alluminum alloy,trussing, light truss, alluminum alloy,trussing, conpact,good-looking1. 3*8M LINE ARRAY SPEAKER TRUSS2. the main tube is 50mm*3mm and the vice tube is 25mm*2mm3. used 6061-t6 the single length is 1m to 4m4. good looking, small volunm, low price and easy to set up 3*8M LINE ARRAY SPEAKER TRUSS