4pcs Replacement Valves & 4pcs Spout Caps for eufy Wearable Breast Pump E10/S1/S1 Pro, Soft Silicone Duckbill Valves Breast Pump Parts BPA-Free Replacement Accessories Kit

["Package Content: You will receive 4 pieces of silicone valves and 4 pieces of silicone spout caps. Sufficient quantity to meet your daily replacement and breastfeeding needs.","Compatibility: These valves and spout caps are specially designed for eufy wearable breast pump models E10, S1, and S1 Pro. Please note that our product is not sponsored or endorsed by, or affiliated with the brands it fits, including eufy.","Product Material: Made from good-quality silicone that’s BPA-free, skin-friendly, food-contactable, providing safe, direct contact with breast milk during pumping sessions..","Leak-Proof & Dust-Proof: The silicone spout caps create a tight seal to avoid dust and accidental leaks during storage or transport. Keep your breast pump components clean and ready for use anytime.","Maintain Pump Performance: Regular replacement of valves and caps (recommended every 1-3 months) ensures consistent suction power, efficient milk expression, and extends the lifespan of your wearable breast pump."]