One meter (3.28 ft) diameter circular base or top for creating truss totems and columns also referred to as truss ring or tower ring. The square profile cross inside the circle carries 1-way female connection for box truss attachment (FT34, HT34, TT34). Main frame tube is 50 x 2 mm (2 x 0.08") and the cross profile is from 50 x 50 x 3 mm (2 x 2 x 0.12").