Minimum of two players spaced 5-8 feet apart (depending on age and skill level). Each player has a basketball and one has a wiffleball or ping-pong ball. Dribbling with your strong hand with proper form, you underhand pass the ping-pong ball back and forth while dribbling. If you miss the ping-pong ball dribble to get it and continue the drill. Switch to your weak hand and continue the drill.