The Total Resistance System (TRS) is highly versatile and convenient. It comes with a set of Power Handles and ankle straps, which allows you to alternate between upper and lower body exercises. With our indoor and outdoor anchors, you can train anywhere at anytime. 5 different levels of resistance tube are ideal for training the whole body by improving muscular strength and endurance whilst promoting muscle growth. All tubes come with the build-in Safety inner cord makes it a safe choice for resistance training. The TRS comes with the ability to increase or decrease the resistance when you train, by adding or removing an additional tube(s). • The Powertube Elite Ultra Light is designed to provide gentle muscle toning. • The Powertube Elite light is designed to improve muscle strength and endurance due to the increased resistance. • The Powertube Elite Medium is designed to provide strength and endurance training as well as promote muscle growth. • The Powertube Elite Heavy is designed to provide increased strength and endurance training as well as promote muscle growth. • The Powertube Elite Ultimate is designed to provide increased strength and endurance training as well as promote muscle growth for advanced individuals.