2-Set Replacement Collection Cup Kits for Momcozy M5 Breast Pump, 24mm Collection Cups with 15/17/19/21mm Flange Inserts, Food-Grade Pump Parts for M5 Only

["Designed for M5 Only: Precisely engineered replacement parts compatible with Momcozy M5 wearable breast pump. Not compatible with other models. Carefully sized components ensure proper sealing and stable performance.","Food-Grade Silicone & BPA Free: Made from soft, food-grade silicone that is BPA-free, odorless, and gentle on skin. Durable yet flexible materials help maintain suction while supporting safe, everyday use.","Complete Dual Set for Daily Use: Includes 2 Collection Cups, 2×24mm Flanges, 2 Duckbill Valves, 2 Diaphragms, and 8 Flange Inserts (15/17/19/21mm). Two full sets make rotation, backup, and travel more convenient.","Easy to Clean & Maintain: All parts can be hand washed with warm soapy water and air dried. Supports boiling or steam sterilization at ≤100°C (212°F). Regular replacement helps maintain optimal pump performance.","Care & Replacement Notice: Do not sterilize pump parts in a microwave or UV sterilizer. Temperatures above 110°C (230°F) may shorten lifespan and pose risks. Replace parts every 3 months or as needed.","Multiple Flange Sizes for Better Fit: Four flange insert sizes help moms find a more personalized fit, reducing pressure and improving comfort. A better fit supports smoother milk flow and a more efficient pumping experience."]