TKO Strength Abdominal/Back Extension Machine 7064-G2Introducing the TKO Commercial Ab Crunch and Back Extension Machine, a dual function powerhouse that transforms your space into a hub of strength and efficiency. With the TKO Ab and Back Machine, they can seamlessly switch between ab crunches and back extensions, enjoying a diverse workout without ever leaving their spot. This versatility is matched with uncompromising durability and a 160 lb. weight stack that challenges even the most advanced users