Wonderful Dog Toy: Small dogs like playing fetch,with the automatic dog ball launcher, your dog can be able to enjoy its favorite game happily everyday. Interactive Dog Games: The dog ball thrower for pets functions as a perfect throwing toy, which can not only train your pet's patience and consistency but also make the dog smarter. Adjustable Launching Distance: Tennis ball launcher for dogs can launch balls to 3 different distances: 10ft, 20ft and 30 ft, to meet your dog's excising needs. More Tennis Balls: Package includes 15 pcs 2-inch mini tennis balls and a mesh bag, it can be used by the ball launcher for a long time. And it is convenient to put the tennis balls inside mesh bag or taking out for outdoor play, it is perfect. Please search for Asin# B0B7JBMNJ7, it is the tennis ball for this dog ball launcher. Satisfactory Customer Service: Please contact us if you have any problem for using the ball launcher, we will offer timely reply and satisfactory resolution to you. Automatic Dog Ball Launcher, Dog Ball Thrower Machine with 10-30Ft 3 Launching Distance, Interactive Toys for Small Dogs Indoor & Outdoor, 15 Mini Tennis Balls Light Green Package Enclose: 1 Light Green Ball Launcher, 15 pcs Mini Tennis Balls