【Safe material】Pulsator diaphragm made of high-quality rubber, soft and durable, healthy and safe, and long service life. 【Perfect combination】Equipped with 2 small diaphragms and 2 large diaphragms, sizes are available for selection and easy to replace. 【Milking machine spare parts】The repair diaphragm of the cow milking machine is an essential part of the cow milking machine. It helps the farmer to milk and is a good helper for the farmer. 【Easy to install】The installation is very simple, can deal with the harsh farm conditions, the applicable model is HL-P07. 【Guarantee】Strict quality inspections are carried out in every part of the manufacturing process. If you have any questions about our products, please contact us. We will be happy to answer your questions and solve your problems. 7/24 email support.