Volleyball system, FIVB certificate

This is the post set of a hall that hosts official volleyball: two aluminium posts stand in ground sockets, and the net height is set by a telescopic column rather than by a sliding collar, so the working height is repeatable from match to match.

The tensioning device is mounted on the outside of one of the two posts and is reached without tools. The sockets and their adjustable lids are galvanized steel and are set into the floor; when the posts are lifted out the lids close the opening flush and the hall is free for another sport. The article is FIVB approved for international competitions.