These professional quality suction cups are based on the ancient technique of Chinese medicine cups. Using these cups may improve blood circulation and reduce inflammation, leading to potential benefits such as improved muscle and joint health. Crafted with precision, these cups are great to use for reliving tension and increasing range of movement. this product is a personal favorite for how fast and easy it is to see the results, truly life changing especially if you have a physically demanding job or have to remain behind a desk for long hours.