Prolyte X-truss can be recognized by the CCS 6® couplers with the Prolyte-logo at the ends of the truss and it has one ring below the pin holes.
The X40D truss is of triangular type:
339mm (w) x 294mm (h) (centre to centre)
390mm (w) x 345mm (h) (connection outside).
Chords: tubes 51x2 mm
Lattice and bracers: 20x2mm