Billie Jean King’s Eye Coach Replacement Tennis Ball for Tennis Practice Trainer

Our portable Eye Coach is Billie Jean King’s gift to the tennis industry. A trusted tennis system that is used by clubs, professionals, and trainers around the world, it is the industry’s top at-home tennis training aid. Players of all levels and ages can use it to improve their skills immediately and forever. Use it to practice 30 different skills, including topspin and underspin, and increase your sweet-spot hits by over 40 percent. With the Billie Jean King Eye Coach, you can also dramatically reduce mishits while increasing power, speed, and accuracy. It’s simple to set up, weighs only 13 lbs., and fits inside a compact carrying bag. This is the tennis trainer you use when you want to see a real and lasting improvement.

As with any product, the parts on your Eye Coach will eventually wear out, including the tennis ball. This replacement tennis ball is a real ball with brass and plastic grommets. Each ball will last through about 8 hours of use. To change the ball, slide down the rubber string guards on each side of the ball. Use the hex wrenches that came with your machine to remove the axle bolts and remove the axle. Slide the old ball off and the new ball on. Insert and align the axle and rethread the axle bolts. Tighten the bolts using the hex wrenches, but be careful not to overtighten them. Slide the rubber string guards back into position.

Billie Jean King’s Eye Coach allows you to practice anywhere, anytime, regardless of weather. All you need is 10 feet of space and 5 minutes. With only 5 minutes per day, our Eye Coach retrains your eye to focus correctly for contact and helps you gain 7x more repetitions than on the court. Our unique ball-striking training dramatically decreases mishits, improves confidence, and creates permanent improvement. Improve your game with our portable tennis trainer.

Description..
REPLACEMENT BALL: Real tennis ball with brass and plastic grommet to use with our Eye Coach trainer.
TENNIS PRACTICE EQUIPMENT: See an improvement in on-court tennis skills with only 5 minutes a day.
LONG USE: Replace the ball in the tennis ball machine after about 8 hours of use.
PORTABLE SELF-TRAINING TENNIS TRAINER: Practice off-court with no distractions anywhere, anytime.
EYE COACH: Trusted tennis training equipment used by clubs, professionals, and trainers worldwide.