The net prevents the ball from leaving the court, reducing the number of playing stoppages.
While the sport does not have as large a following as netball does, its popularity is growing in countries such as England, South Africa, Australia and New Zealand.
Scoring is also different, with some resemblance to Fast5 netball: Attackers can shoot from inside the circle, with a successful shot worth 1 point.
Once a goal is scored, a Defence player from the opposition team takes a throw-off from the top of their circle.
This version is a lot like original netball, with the court in divided into thirds and with seven players similarly positioned.
The ball shall be a universally accepted Netball or Association Football Size 5 and shall be supplied by the centre.
The offending player may be removed from the court or a Three Goal penalty will be awarded to the Non-Offending team.
This was the first time that 21-&-Under Ladies was contested at a World Cup level, which has appeared in all subsequent Open events.
Following on from this success INA England competed in the 2008 Indoor Netball World Cup in Australia.
In the 2012 World Championships held in Brisbane, England's U21s squad gained silver medals.
In 2013, England competed in the Masters Tri-Nations tournament entering an over 30s ladies team and Under 18s women's squad.
The over 30s ladies squad reach the semi-finals narrowly missing out on a finals place to Australia.
INA England won 'Player of the Tournament' in both the Under 18 and Over 30s section for the 7s a side version.