Bright: Serve like a pro at night - our glow in the dark ball features not 1, but 2 LED lights for up to 30 hours of evening play Impact Activated: Ready, set, glow! These light up balls illuminate from the inside with a tap or serve, and automatically shut off when not in use. Durable: Nylon wound and water-resistant, this light up volleyball sports a sturdy exterior and uses grommets to help keep the glowing lights secured. Setup: Each glow in the dark volleyball comes with easy-to-follow instructions and batteries. Simply inflate using a pump to start playing backyard or beach volleyball with friends. Volleyball Gifts: Ace the gift-giving game with our LED volleyballs. They'll be love at first spike during birthdays, holidays, and other occasions.