In just a few seconds, you will be set up thanks to the quick-lock magnetic belt design. Begin spinning the adjustable-length weight using the same motion as hoola-hooping, and the multi-function digital counter tracks your reps, calories, and workout time. The adjustable-size design fits different body types with its modular interlocking hip belt. We also Included an eBook and drawstring bag, so you can take your workouts wherever you go!