The YWBL-WH Milk Collection Cup Duckbill Valve Replacement Set is an essential accessory for nursing mothers, ensuring a perfect fit and comfortable suctioning with their M9 Wearable Breastpump. Made of high-quality, food-grade silicone, it is safe for both mom and baby. The dark blue color of the set ensures privacy and comfort during nursing sessions. The detachable duckbill valve design allows for easy expression of milk while preventing any leakage. The 150ml capacity makes this a perfect choice for those who breastfeed frequently. Its secure fit is ensured by the unique keyhole latch system, ensuring a leak-proof seal. This replacement set is compatible with the M9 Wearable Breastpump, making it a versatile accessory for long-term use. In addition, the set is CE and FDA compliant, providing peace of mind for both mom and baby.