Features: Ensure optimal performances of your breast pump with our full set of replacement parts, compatible for s32/s39 models, feature 24mm/27mm flange for efficient milk collection. Craft from high quality silicone, soft, full of durability, and easy to disassemble and clean, ensuring a safe and hygienic pumping experience. Designed specifically for breastfeeding mother using the wearable electric breast pumps, providing reliable support throughout the nursing journey. Perfect for use at home, office, or while traveling, offering convenient and efficient support for breastfeeding mother. Enhancing your breastfeeding routine with these essential pump accessories, ensuring you have all the necessary component for seamless and effective milk expression. Specifications: Component: Silicone Type: 24mm, 27mm(optional) Membrane Size: approx. 4.6x4cm/1.81x1.57inch Duckbill Valves Size: approx. 1.1x2.6cm/0.43x1.02inch Applicable Model: for S32/S39 wearable electric breast pump Package Includes: 1 Piece Breast Milk Collector 1 Piece Membrane 1 Piece Duckbill Valves(1pc, not multiple) 1 Piece Flange(24mm/27mm Optional) note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.