The Royal Overhead Twister is a whirlwind way to get in shape. It works the muscles of the upper body, such as the biceps, triceps, pectoralis major and minor, the deltoids, and the teres major. It also strengthens the abdominal muscles while adults and teenagers try to stabilize themselves. It pairs well with a more lower-body focused machine like the Royal Leg Press. This station also helps to correct posture by stretching your back while you dangle. It comes with two usable twisters attached so that a pair of individuals can get into shape and help motivate each other. The Royal Overhead Twister is an outdoor friendly piece of fitness equipment. The galvanized steel that this unit is made of battles inclement weather with unparalleled rigor. The steel is also powder-coat painted for a better, long-lasting, and durable material that anyone wanting to protect their investment would want. Start living healthily with the Royal Overhead Twister.