The rectangular carbon fibre tubes are laminated from prepreg High Strength Carbon fibres and epoxy resin. The outer layer has a twill weave with the traditional carbon look. The fibres are laminated in different directions in the wall thickness of the tube. This ensures unique stiffness and strength as well as low weight. These rectangular carbon tubes are far more resistant to bending than metal alternatives.

Refiflex® is a unique construction system of carbon fibre components for building lightweight structures. The range includes carbon fibre connectors that can be used in combination with the round and square tubes, to make a 100% carbon fibre construction, extremely low weight and with optimal strength and rigidity.