Spirit Fitness Dual Biceps Curl / Triceps ExtensionThe Spirit Fitness Dual Biceps Curl Triceps Extension machine is engineered to provide a focused and efficient workout for your upper arms. Designed with an angled arm pad, it effectively limits shoulder movement, ensuring maximum isolation and engagement of the biceps and triceps. Easily switch between these opposing muscle exercises with the adjustable machine cam, which delivers a smooth transition between the two without disrupting your workout