Our invisible nipple strips contain PE material. It helps prevent friction, exposure, and bumps. Its use method is very simple: 1. Wash your hands before use. 2. Slowly and gently peel off the white lid. 3. Find the center point and cover the breast on the areola. 4. After adjustment. Press 3-5 times until it fits. After use, you can feel that this is a more intangible and natural product for the chest. Whether it's a bikini, a running party, or a sports date, it's easy to handle.