Hip Circles are crucial for leg strengthening because they offer variable resistance, allowing you to target different muscle groups effectively. They're versatile, portable, and can be used for various exercises, providing tension throughout the entire range of motion to challenge muscles and improve strength, stability, and flexibility in your legs. Plus, they're gentle on joints, making them suitable for people of all fitness levels.Choose from 3 different sizes that are great for all ages including toddlers and preschoolers . They can be used for all sports programs.