Tennis Trainer: Is the ideal tennis trainer helping to improve your skills without the need for a net, court or even a partner! Featuring a real tennis ball and the amazing Power Padel Bat, the first Swingball bat to replicate the feel and performance of a real tennis racquet! Practice: Including a sturdy, non-slip base and no-tangle reflex cord work up hours of practice helping to perfect your skills and even get your body in shape. Swingball Pro Reflex Tennis Trainer is the perfect tool to help work on your tennis strokes, maximize your speed while building on your quickness, hand-eye coordination and stamina. Includes: An adjustable reflex cord to fine-tune play or wind back in when not in use to increase longevity, real tennis ball and Power Racquet, making this game perfect for both children and adults.