There are plenty of standard ab boards available on the market. The TITLE Precision Punch Incline Ab Board is not your average sit up bench though. It not only lets you perform various abdominal exercises, it also has a punching ball to enable you to push your body harder and burn more calories.
The product measures 32″ by 15″ and weighs about 25 lbs. It is easy to assemble and has extra-thick knee and ankle rollers. Sets you back under $50 at this time.