Flybird Multi-function Power Tower is a well-built exercise machine with a firm and durable construction. It offers a variety of customization options. The six gear regulation heights, seven levels of backrest adjustment, and three angles of the push-up handle make this pull up machine extremely versatile. This dip station supports vertical knee raises, push-ups, dips as well as pull-ups, which help tone and target your arms, core, shoulders, chest, and back for a stronger body.