The cage consists of 7 vertical extruded aluminum posts with an octagonal section (150 x 150 mm) and reinforced by internal ribs. The upper part of the posts has an 'L' shape for lowering the net, while the lower part includes a steel profile with a square section that protrudes and is inserted into the anchoring concrete footing.
The posts have two different heights (7.3 and 10.3 m), so that the protection net reaches the useful heights of 7 and 10 m, respectively. They incorporate a hinge system in their lower part that facilitates their installation, in addition each one is equipped with a winch to manually activate the lifting system of the horseshoe-shaped structure that supports the net.