Costway via Rakuten offers its Costway 5-in-1 Twister Ab Rocket Abdominal Training Bench for $79.99. Coupon code "SPORTS20" cuts the price to $63.99. With free shipping, that's the lowest price we could find by $16, although we saw it for $3 less in February. It features an adjustable headrest, adjustable backrest, and two elastic pull ropes. Deal ends April 15.