The Body-Solid BFHYP10 Best Fitness Ab Board Hyper-Extension allows you to take your daily core workout and turn it up (or down) a few degrees! The Body-Solid BFHYP10 Best Fitness Ab Board Hyper-Extension combines the two most popular core workouts, an ab crunch and a back hyper-extension, into one, easy-to-use machine. The back hyper-extension 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. Dimensions: 32"H x 49.5"L x 29"W |