To pickup, press TennTube over tennis ball To empty, turn upside down. The ball release is controlled by resting the TennTube on the little finger. The third finger prevents the balls from rolling out. Release balls using your thumb and first two fingers. To retain and carry balls, pull the rubber band over the end of the TennTube and then under the second "fence hook". TennTube® "RELEASE & HIT"™ method Ideal for 'tosser to hitter' and 'hittier to hitter'. You can easily practice your forehand, one-handed backhand and forehand volley. Backhand The release and hit method promotes good form and technique. Note the backhand follow through. Forehand The release and hit method promotes good form and technique.