Product information: Material: silicone Number of cupping: 4 Color: translucent Applicable scene: health massage, fitness and body Cup size There are 4 sizes of cups, you can use the cup on any part of your body 1 large mug with a diameter of 10.6 cm 1 large cup with a diameter of 7.6 cm 1 medium cup with a diameter of 5.95 cm 1 small bowl, 4.55 cm in diameter Packing list: 4 * silicone shell Helps to dredge the meridian, treat rheumatism, relieve fatigue, stimulate blood flow, lymph circulation, remove moisture, body shaping and so on. It's good for your health. Activate lymphatic system, detox your body, improve respiratory function, reduce hypertension. Simply create a vacuum with the cups and massage for up to 10 minutes to get radiant, healthy-looking skin. Made with High Grade Silicone, is soft and elastic with enough thickness for strength and suction. The design of the cups makes it easy to grab and push down to create the suction for treatment.