Best Fitness Ab Mantis Bench Semi-recumbent ab bench designed to tighten up midsection and improve core stability Upholstered back support, textured grip handles, and standard weight post Adjustable-length, 2-position footrests; adjustable, 3-position upholstered seat Encourages a flatter stomach, better-defined abs, well-developed obliques, and more Durable powder-coated finish; measures 22 x 46 x 64 inches (W x H x D)