Product Overview: The Momcozy Milk Collection Container Set is designed to serve as a replacement or additional set for the Momcozy S12 Pro wearable breast pump, ensuring a seamless pumping experience. Key Features: ‣ Specifically compatible with Momcozy S12 Pro. ‣ Leak-proof design ensures safe milk collection. ‣ Easy to assemble and clean. Specifications: ‣ Material: BPA-free plastic and silicone. ‣ Size: Holds up to 180ml of milk.