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 should 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 roll your lips as deeply as possible in the lip pump. Place your upper and lower lip between the middle platform. Learn not to drip slime on your pump. Breathe through your nose to prevent air from entering the air pump. Drop the pump. When your lips are tucked into the lip pump, relax your pursed lips. Specification: Item Type: Lip Enhancement Device Material: Silicone Package list: 1 x lip augmentation device 1 silicone ring. 1 instruction manual.