Sand-filled artificial turf

Sand-filled artificial turf

Sand (or other kind of filler) is necessary because a long blade of grass must always have some sort of support. This prevents it from laying flat. Sand is ideal because it is clean, natural and heavy. Sand not only makes the artificial turf heavier, so that it does not move around or lift up, but it also protects the turf and provides stability. 

Equally as important, it enhances the natural appearance of the turf. A common misconception is that the sand results in higher maintenance or soiling of the turf. Although sand-filled artificial grass does require slightly more attention than filled systems, it has a much more attractive appearance. This system also offers the certainty that the golf green will continue to look well-kempt and attractive year after year. 

Unfilled artificial turf 

A long blade of grass requires support. This can be provided by adding a layer of sand, as described above, or by using a frizzy fibre integrated into the bottom of the grass cover. This frizzy fibre, also known as mossy wire, makes the artificial turf look fuller and more attractive. The decision as to whether to choose filler sand or a mossy wire depends on the type of use. 

5-a-side football is a variation of association football in which each team fields five players (four outfield players and a goalkeeper), rather than the usual eleven on each team. Other differences from football include a smaller pitch, smaller goals, and a reduced game duration. Matches are played indoors, or outdoors on artificial grass pitches that may be enclosed within a barrier or "cage" to prevent the ball from leaving the playing area and keep the game flowing.

Futsal is a version of indoor five-a-side football officially sanctioned by the football world governing body FIFA.