The player at the front of the 2 players runs to the middle to collect the ball on the cone and roll it to the player on the opposite side.
This player collects the ball and runs to the middle to put the ball on the cone.
The next player then runs to collect the ball and rolls the ball for next player waiting.
Players continue to run to the opposite side each time.
Although this is tiring challenge players to push themselves and sprint to meet every ball - slowing with small steps as they approach.
The rolled ball should be accurate so players should not rush the throw.
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.