GANAS triceps bench press machine helps build many muscles in the upper body. You can do this exercise with either a barbell or dumbbells. Perform bench presses regularly as part of an upper-body workout for increased strength and muscle development.The bench press is a compound exercise that involves the pectoralis major of the chest, the anterior deltoids of the shoulder, and the triceps brachii of the upper arm. It builds strength as well as encouraging the growth (hypertrophy) of these muscles.