you can see the demostrative video in this page:
conos con soporte y cinta que se unen entre sí, delimitando espacios deportivos y de juego de cualquier forma.
The invention relates to holders and to a belt for defining spaces included in a first holder that contains a first base having a reel to receive the properly wound belt secured to the spool shaft, first means for connecting the shaft and the base and elastic retaining means suitably attached to the spool, a second holder comprising a second base having initial anchoring means adequately connected to the second base, a belt having ends which are suitably attached to both holders, a first covering of the first holder and a second covering of the second holder.
With this invention it is possible to limit any kind of sport field in any type of surface (grass, concrete, sand...). With 4 holders we can make a rectangle to any kind of sport because they are linked together making it possible for any shape to be built.