Players work in pairs and move around the court, trying to keep dribbling to a minimum.
Before being allowed to make a pass the ball must pass through a gate, the next player must then also pass the ball back through a gate of the other colour.
Players progress like this until they have made 6 passes.
After completing 6 passes players sprint around the outside of the court to the back of the queue for the other group.
Progression:
Players must both pass using a chest pass, then a bounce pass.
Rebounding is the least glamorous thing in basketball and one of the most decisive. It is also almost entirely a habit, which means it is entirely coachable.
Good spacing is only the start. The best modern offences teach players to attack the defence's rotations and play in a permanent 4-on-3 - here is how to coach that read.
The ball screen produces almost half of all professional offensive possessions, yet most teams still teach it as a memorised play. The modern approach trains the read - giving players a framework to decide based on what the defence does, not what the coach called.