Fullips Enhancers are designed using self-suction, not a pump. Self-suction allows the user to control the level of enhancement to create a better lip line and overall lip fullness. Use gentle suction only for 15-30 second increments to avoid bruising. Do not overuse. Results vary 1-4 hours. Getting suction at first can be tricky and it can take about a month of use for max effects. Our lip enhancing device is made in the USA of hard food-grade plastic. It provides a simple, non-invasive, temporary solution for fuller lips without the pain and expense of lip injections. If you have trouble or need help choosing a size please contact us, we can help! Videos and FAQs also available. Choose from 3 shapes/sizes: Large Round, Medium Oval, and Small Oval. U.S.Pat.No. US8858472. Additional Patents Pending. *CAUTION: Read all directions provided in box. If box has been tampered with or instructions are not included, do not use and contact us. *CAUTION: Anyone who has had lip injections and/or fillers should NOT use Fullips. If your lips or mouth are under a doctor's care, use of this product should always be cleared with your doctor first. If you have any concerns about using this product or have any health concerns, check with your doctor. If you have issues with your teeth, gums, tongue, mouth issues, oral surgery, cold sores, bruising, bleeding, medications, blood thinning issues or take blood thinning medication, check with your doctor first. If you have an allergic reaction, stop use and call your doctor immediately. This is not a toy and should not be used by anyone under 18 without parental consent and guidance. WARNING: PRODUCTS FROM OTHER SELLERS MAY BE COUNTERFEIT. FULLIPS DOES NOT GUARANTEE THE SAFETY OF COUNTERFEIT ENHANCERS AND IS NOT LIABLE FOR ANY HARM CAUSED BY COUNTERFEITS. FULLIPS PRODUCTS ARE SOLELY MANUFACTURED AND DISTRIBUTED BY FULLIPS LIP ENHANCERS; WE HAVE NO AUTHORIZED RESELLERS ON AMAZON.