Practice your basket-shooting skills when going outside isn't an option. Just hang the backboard over the door, flip on the cool LED lights, and take your first free throw! At 18" x 12", it installs easily on almost all standard doors, plus it's designed with built-in cushioning to protect your doors from damage. Includes a 5" rubber basketball with an easy-grip, textured surface, plus a pump. Requires 3 AAA batteries.