Freestanding portable volleyball system (2 posts), aluminium model for competition. Main posts made of aluminium, oval profile 120×100 mm, with inner reinforcement and sliding system for the height regulation of the net with blocking knob. Varnished steel base to be fixed to the ground, equipped with nylon transport wheels. Varnished steel reinforcing tubes connecting upper part of aluminium post to the base. Including net tensioner device installed in one of the 2 posts and ground fixing accessories.