Made to let you boost stamina and improve overall fitness, the Fitness Mad Studio Pro 40in rebounder ensures a smooth bounce and extra elasticity. It not only increases capacity of heart and lungs, but also helps you build strength and tone all major muscle groups while enjoying zero impact aerobic exercises. The trampoline is suitable for adults of all fitness levels and allows for developing balance, coordination and endurance. Whether you dance, jog or bounce, the rebounder is a great fun and has a strong, durable and stable heavy gauge powder coated steel frame and a smaller 420 denier oxford nylon spring cover delivering a larger bounce area. For good spring quality and a better bounce, there are 36 barrel springs with a diameter of 32mm and a solid polypropylene bed with nylon thread stitching offers added safety. Easier and faster storing is provided by 6 chrome foldable legs and wide non-marking rubber feet guarantee a better grip.