Each player has a ball.
The aim is to keep underhand passing high over their own head for as long as possible, all the while keeping in control of the ball.
To reach a high number of passes in a row the player must concentrate and use good footwork skills.
The player must use the correct leg extension and arm elevation on each pass
World Rugby has reportedly conceded Aaron Smith's disallowed try in the World Cup final should have stood.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.