Features: Keep your breast pump working at its best with this spare part, easily replace worn out membrane for leak prevention. Silicone, the membrane provide stable performances and prevent leaks during pumping. Designed for breastfeeding moms, this replacement part is a must have for those using breast pumps, ensuring a smooth and efficient pumping process, giving you peace of mind. Whether at home or work, the membrane is essential accessories for easy pumping, enjoy uninterrupted milk expression. If the size of your breast pump diaphragm is the same as this one, it can use. Specifications: Component: Silicone Size: about 49x41mm/1.92x1.61inch Package Includes: 1x Breast Pump Silicone Diaphragm note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.