Notice to All Customers: Each cup therapy set contains (2 cups OD 2.83 inches , 2 cups OD 2.44 inches, 2 cups OD 2.05 inches, 2 cups OD 1.77 inches, 1 x electric pump, 1 x extension tube (optional), 1 x English Manual.Free return and exchange for any issues with the products within 30 days from the date of purchase, and lifetime warranty for all accessories! We stand behind each customer and provide the best customer support and service!. Apply to Both Professionals and Home Self-care Users: COOBST cupping set is not only suitable for Chinese medicine practitioners, occupational therapists, massage therapists, beauticians and other licensed medical providers, but for ordinary users like you and me. Equipped with extension tube, you can operate vacuum cupping kit yourself, turn your home into a spa center with COOBST hijama cupping set. Become a massage pro and rejuvenate yourself both mentally and physically!. Keep You Healthy: Cupping therapy is an ancient Chinese health therapy. The therapy cup is placed on the skin to produce powerful suction in order to increase blood flow, reduce inflammation and promote lymphatic drainage. Cupping massage is better than deep tissue massage, which is ideal for those struggling with back pain, arthritis, thigh soreness, joint pain, and muscles stiffness. Improve your blood circulation and body immunity, no any side effects! Indulge in Chinese cupping set now!. COOBST is one of those a few sellers who owns electric pump in the market . With this pump, you do no need to use fire such a dangerous traditional method or press hard manually, one-button operation is super easy to use. The silicone nozzle could produce suction power, just like suction therapy, which can be used for massage and scraping on any part of your body. Unlike other cheap cupping therapy set on the market, COOBST use a stronger, higher quality polycarbonate, so it will hardly break. And it leaves no marks and scratches easily, withstand every day wear and tear. The therapy massage cups are shock-proof and heat-resistant, which can be sterilized with boiling water. The material is safe and friendly to skin.