1、By principle of vacuum adsorption to perform a physical acupuncture and meridian dredging and to promote micro-circulation. 2、Create a healthy breast curve, keep your chest straight and elastic. 3、It stimulates the balance of the breasts, the motion of focus, increasing the content of the breasts, in order to improve admirably the improvement and expansion of women. 4、The cup's silicone mouth design fits closely into the chest for convenient contact, and you can choose between large and medium cups to accommodate your size. 5、Appropriate for all types of skin, improve the breast of dysplasia, flat breast, slack breast caused by breast-feeding, deformed breast etc. Features: 1. By principle of vacuum adsorption to perform a physical acupuncture and meridian dredging and to promote micro-circulation. 2. Create a healthy breast curve, keep your chest straight and elastic. 3. It stimulates the balance of the breasts, the motion of focus, increasing the content of the breasts, in order to improve admirably the improvement and expansion of women. 4. The cup's silicone mouth design fits closely into the chest for convenient contact, and you can choose between large and medium cups to accommodate your size. 5. Appropriate for all types of skin, improve the breast of dysplasia, flat breast, slack breast caused by breast-feeding, deformed breast etc. 6. Comes with a remote control for a more convenient operation. 60 W potent suction, obvious effect. Two modes to choose: absorb and desorb and absorb continuous. Specification: Item Type: Vacuum Breast Enlargement Machine Material: Silicone Item Color: As Pictures Shown Optional Size: Medium Cup (AB Cup), Large Cup (CD Cup) AB Cup Mouth Diameter: Approx. 12.5 cm / 4.9 inch CD Cup Mouth Diameter: Approx. 13.5 cm / 5.3 inch Item Size: Approx. 15 x 7 x 3.5cm / 5.7 x 2.8 x 1.4inch Power Supply: USB Charging Charge Time: Approx. 4 Hours Each Time: 15 mins (automatically stop) Use Time: ≤2 Hours Intensity: 3 levels Modes: 2 modes Battery: 3.7V / 1500mAh Weight: Approx. 750g Package Include: 2 * Cups 1 * Main Machine 1 * USB Cable 1 * Connect Cable 2 * Silicone Loop