Specifically designed for small dogs, this ball launcher provides endless joy and excitement with adjustable distance settings and 12 soft, safe 2-inch tennis balls included. Suitable for indoor and outdoor use, it promotes healthy exercise and strengthens the bond between you and your furry friend. (NOTE: Do not put the ball into the launcher before turning it on. Only one ball should be placed in the launcher at a time. Use original or similar 2-inch tennis balls, avoiding 2.5-inch balls or hard, smooth rubber balls. Also, do not use wet, dirty, or broken tennis balls.) Package includes 1 automatic dog ball launcher, 12 2-inch balls, a charging cable, and an instruction manual.