Cupping is a form of Traditional Chinese Medicine that has been practiced for over three thousand years. It involves creating suction against the skin with the use of cupping tools, usually along the body's meridians (energy channels, according to Traditional Chinese Medicine.) Cupping works wonders for on a variety of health issues. Acucups Natural Silicone Cupping Therapy Set is different from traditional glass cupping jars because it requires no heat to create suction. To use, simply press down on the natural rubber cup, place on the skin and allow the cup to regain its shape and create suction. Set Contains 1 Extra-Large Cup 1 Large Cup 1 Medium Cup 1 Small Cup 1 Map of the Body's Meridians with Acupuncture Points for the Most Common Conditions Features and Benefits. No fire/heat is needed, which makes Acucups safer than other cupping methods. Acucups will not shatter, adding more stability and safety. The different sizes nest within themselves for easy transport and storage natural silicone guarantees durability, long use and easy care Acucups are very flexible; they can be applied on elbows, knees, hands, and feet Acucups can work deep tissue more easily than traditional massage and can save practitioners from occupational injuries.