A rebounder is a mini-trampoline used for exercise by people of all age groups. It is ideal aerobic exercise, as it does not put strain on the knees or ankles. It also provides a variety of health benefits including an increase in agility, an improved sense of balance, and a decrease of body fat. We recommend the Soft-Bounce Needak Rebounder, available at http://www.needak-rebounders.com.