Create a 5m triangle and form even numbers behind (A & B), (B) has the ball.
(A) performs a straight lead to receive a pass from (B) at (1)
When catching, (A) lands in good shape to pass to next (A)
(B) remains at front of their line after passing
(A) passes to next (A) then rejoins the back of that line
Players at (1) pass back to the line they came from
Players at (A / B) pass to (1)
Same thing now happens from the second line: (B) runs to (1) to receive from (A), then (B) passes to next (B) then rejoins the back of that line, completing the loop.
(B) must land in a position to drive towards (B)
(A) remains at front of their line after passing
After 90-120 seconds, players swap lines (A & B) to develop the other side of their body.