Aluminium volleyball system (2 posts) with ground sockets, model in accordance to DIN 7896 rule. Main post made of aluminium, round section 100 mm, thickness 5 mm, with inner reinforcment and sliding system for the height regulation of the net with blocking knobs. Including outside net tensioner device installed in one of the 2 posts. Including ground sockets made of aluminium and protective pads made of soft foam covered by coloured washable synthetic material, easy to be applied and removed by means of velcro strips.