You can try out ball tuck crunches, knee tucks, squats and various other exercises to focus on different muscle groups. Develops Balance and Coordination Along with toning and building your muscles, this gym ball will also help you in improving your coordination skills and balance. Easy for any Age and Fitness Levels Designed for both men and women, this ball is safe to be used by individuals of all age groups and you can practice all forms of exercises starting from beginner level to tough advanced level.