The AIBI Fitness Trampoline invigorates your exercise routine. It uses smooth, low-impact, nearly silent elastic cords, opposed to jarring, squeaky steel-coil springs. Arched legs provide unmatched stability and the ability to be stacked. Whether you are looking to get back in shape, or want to tone your physique, The AIBI Fitness Trampoline provides a challenging workout that meets you where you are.