Thank you for taking the time to leave your feedback. We are sorry to hear that you are not satisfied with the product. We would like to kindly clarify that according to our shipment records, the pump heads we sent you are indeed made of stainless steel, not plastic. We understand that there might be a misunderstanding regarding the material's appearance or feel. More importantly, we noticed that the first pump didn't fit your bottle, and our team immediately sent you a replacement free of charge to ensure you get the right product. Providing excellent service and solving problems for our customers is our top priority. We have sent you a private message to follow up on this matter. Could you please check your inbox? We are more than happy to assist you further and resolve this to your complete satisfaction. Thank you for your understanding.