Tone and strengthen, improve core strength, lose weight, or simply get healthy and fit; the Balance Half Ball with Stretch Cords is fun, easy to use, and effective. With a few minutes a day, you can strengthen and tone your upper body, lower body, and core muscles. The Stretch Cords can turn your balance ball into a strength training unit. This will allow additional exercises that improve strength, balance and coordination. The Balance Half Ball will also blast calories. Getting results and the body you want has never been easier!