Abstract: In a playing-field enclosure, particularly for ball games, having a peripheral, vertical band-including a plurality of sheet-type band elements that can be connected to one another with a form-fit in order to assure simple assembly and storage connecting elements are disposed between two respective sheet-type band elements, the connecting elements having a support surface and a connecting rib that extends vertically upward from the support surface; the connecting rib has vertically-extending U profiles on opposite sides or sides that are offset from one another by 90°, the band elements being inserted into the profiles with a form-fit; and the support surface has upwardly-extending retaining mandrels in the positioning region of the band elements, the mandrels engaging corresponding retaining recesses of the band elements inserted into the U profiles.

Abstract: In an adjustable height post for a volleyball net, in particular for a beach volleyball net, comprising a ground sleeve to be anchored in or on the ground and a net pole, which is lockable in variable positions of height and is displaceably guided in the ground sleeve, telescoping in the vertical direction, it is provided that the net pole and the ground sleeve are roller-seated relative to each other by means of bearing rollers, and that a rubber-elastic cord is mounted between the net pole and the ground sleeve, by the expansion of which a counterforce can be produced, which opposes the weight of the net pole.

Abstract: In a playing field boundary, particularly for ball games, that encompasses a peripheral, vertical band comprising a plurality of plate-like band elements that can be connected to one another, in order to make the boundary easy to transport and assemble, as well as highly stable in the assembled state, it is provided that the band elements (1) can be connected to one another form-fittingly, and that a peripheral, tensible belt arrangement (belt 28) is provided which encompasses the band elements (1).