1.If you have any questions, you can contact us and we will try our best to help you solve it. 2. You don't have to worry about the material problem, the bottom is made of silicone material, the above is made of plastic material with open design, high-quality material is your ideal choice, it can let you apply for a long time. 3. We combine your needs to develop pet breast pump, can be a good solution to your puppy milk pumping confusion, you do not have to worry too much about her application effect 4. It is a manual design, can be fully applicable to cats and dogs, good control of strength, will not waste your time too much 5. The application is very convenient, a pinch and a suction can complete the entire operation step, and when you want to clean the suitable is also very convenient