Thank you all for your responses. Kfamr I ordered the Ball Stomp'e & can hardly wait to get it in the mail. I have three dogs that like to chase & catch the tennis balls. This will sure help me physically not to have to throw the balls for the dogs. I swear I have pitchers shoulder, arm, & elbow in my left arm from throwing tennis balls all these years for our dogs. Thank again Bonnie & my dogs Max, Bob Barker, & Baxter Black.