How to Use: Step 1: Put the lip pump under your lips, and test whether the lip pump and oral operation are suitable for the center of your lips. If the lip is curved: open your mouth when using the lip pump, and you need to make sure that the indentation is on the center line of your lower lip. Step 2: Pinch the lip pump to discharge the air. When the lip pump is compressed, pout and twist your lips as deep as possible into the lip pump. Place your upper and lower lip between the middle platform. Learn not to drip drool into your pump. Breathe through your nose to prevent air from entering the air pump. Release the pump. When your lips are pulled into the lip pump, relax your pursed lips. Specification: Item Type: Lip Plumper Device Material: Silicone Package List: 1 x Lip Plumper Device 1 x Silicone Ring 1 x Manual