The Lock and Load Swingtrainer is the ideal swing trainer for T-ball age players and up. It is made of the same durable material as the Advanced model, but was designed to allow the younger players to learn the proper swing mechanics with ease. A must trainer for the biginner and youth coaches. An extra coach and a personal coach at your home !!!! Learn the mechanics used by the pros !!! FALL/WINTER SPECIAL !!!! GET YOURS TODAY!!!