Product details:

Master that perfect one-timer with the NHL One-Timer Hockey Passer! This unique training aid replicates the perfect one-time pass so you can sharpen your skills in your own driveway! Each passer is designed to hold up to 9 standard 2 5/8 street hockey balls, and includes 4 balls to get you started. The LED indicator light blinks to alert you of an incoming pass. Add a new dynamic to your training and perfect your one timer with this unique hockey trainer!4 STREET HOCKEY BALLS INCLUDED: This passer comes with 4 regulation sized street hockey balls to load into the feeder
BUILT IN READY LIGHT: Flashing LED light lets you know when the pass is on the way so you can get yourself set to go top shelf
BATTERY OPERATED: Requires 4 D batteries that are NOT included