Throw Pro was designed for the beginner, intermediate, and professional darters. We are all wanting to better ourselves at the sport we love to achieve the highest level of competition. That being said, it was designed with YOU in mind! How it helps: Throw Pro is designed to telescope to your perfect throwing angle, lock in place and ease your mind leaving you only to worry about when to release the dart. Throw Pro will stabilize your throwing arm to take any manipulation out of your throw, producing accuracy and tighter grouping. The measuring guide will allow you to know exactly where to lock it in place for consistent practice, making Throw Pro the only training aid you will ever need.