| Description: Twist-top cupping is a modern development based on traditional cupping. It duces the effects of traditional cupping methods and eliminates some of the disadvantages. Each of these cups generates its own vacuum through the action of a screw valve with rubber seal in the cup body. Just put the cup on the desired area and twist, the cup will remain attached. Rotary piston exhaust method replaces the traditional method of ignition exhaust, no worries burns, safe and secure, greatly facilitate the people to use, both for the hospital, but also for families. Features: Material: Plastic Color: As the picture show Diameter: 2.9cm/3.8cm/4.4cm/5.3cm/6.4cm/7.3cm Cupping tips: 1. Usually once a day or every other day, every 5-15 minutes (often those bubbles, the elderly and infirm and children 5-7 minutes is appriate); 2. 7-10 times for a course of treatment, rest 3-5 days after the next course of treatment, it can be flexible based on individual physical . Package included: 2Pcs X Suction Cupping |