Features: Keep your breast pump working at its best with this convenient spare valves and membrane, easily replace worn out membrane for optimal suction and leak prevention. Made from durable plastic, the membrane provide reliable performances and prevent leaks during pumping,say goodbye to interruptions and enjoy a seamless pumping experience. 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 hassle free pumping, enjoy uninterrupted milk expression and make the most out of your pumping session. Suitable for Swing, Mini Electric etc totally 4 kinds of breast pumps, experience enhanced comfort, efficiency, and convenience while expressing milk. Specifications: Material: Plastic Color: White+Yellow Size: As Pictures Shown Applicable Models: for Swing, Mini Electric etc total 4 kinds of Breast Pumps Package Includes: 1x Breast Pump Replacement Valves & Membrane note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.