DECOLOCK DQ4-750 is a 4-point aluminium truss cross beam with a length of 75 cm and outer dimensions of 22 × 22 cm. The four main chords use 35 mm aluminium tubes with 2 mm wall thickness, while the braces have a diameter of 10 mm and 2 mm wall thickness. Elements connect through cones, pivots and pins using the QUICK-LOCK conical connection system. The beam is intended for decorative temporary or permanent installations in theatres, exhibitions, shop fitting, stages and trade fairs.