DESC: Free Shipping! Authorized Body-Solid Dealer. The Body-Solid Best Fitness Ab Board Hyperextension combines the two best core workouts into a single, easy-to-use, space-efficient machine. Take your daily core workout and turn it up (or down) a few degrees. It combines the two most popular core workouts, an ab crunch and a back hyperextension, into one, easy-to-use machine. The back hyperextension works comfortably from a standing position, providing a low-impact back workout, while the ab crunches will help you build abdominal muscles that are crucial to maintaining lumbar spine strength. The stronger these muscles are, the more support and stability they can provide. The Best Fitness Total Core Trainer allows you to vary the starting position of your workouts between 15, 20 and 25 degrees. The simple pull of a pin enables you control the angle of the bench to increase or decrease the intensity of each session. Best of all, the Best Fitness Ab Board Hyperextension comes completely assembled, meaning right o...