This is great!  I no longer have sticky, drippy, smelly dog spit on my hands.  The Chuckit launcher provides a way to play with my dog without having to touch the ball with my hands.  Fits a standard tennis ball.  I've been using it almost daily for about a month now and the only negative thing I have to say is that over time, the long handle tends to curve more as a result of pressing the "hand" onto the tennis balls to pick them up.  Otherwise, this is probably one of the best investments I've made for my dog.