Great for those who don't have a strong pitching arm.  As advertised, it about triples the distance the ball travels without any extra effort or wear on your arm.  The tennis style ball that comes with it will be promptly popped by strong chewers.  That said,&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/ChuckIt-Medium-Ultra-Balls-2-5-Inch-2-Pack/dp/B000F4AVPA/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">ChuckIt! Medium Ultra Balls 2.5-Inch, 2-Pack</a>&nbsp;fit perfectly and are much hardier.  The combination can't be beat.