Yahaa 2 Sets(6pcs)Manual Breast Pump Package including:2x Yahaa milk collector pump+2x Removeable Spill Free Valve+2x Silicone Cap Feature 1st: ONE-PIECE SOFT SILICONE DESIGN-COMPACT AND LIGHTWEIGHT, Let's You Express Milk Using the Power of NATURAL SUCTION,Mimicking A Baby's Natural Feeding Rhythm, also fit your pumping bra. Feature 2nd: Colostrum collector has A REMOVEABLE SPILL-FREE DUCKBILL VALVE on the inside center.This valve ensures milk ONLY GOES IN AND DOES NOT COME OUT. The valve closes when you stop express milk and keeps the breastmilk in the pump. Feature 3th:JUST ONE STEP for use yahaa hand pump breastmilk : You don't need to fold back the flange like some other milk collectors. You can just squeeze body of pump and suction to your breast without additional difficult steps. It’s also postpartum essentials of nursing mothers.Portable breast pump make of the high-quality, eco-friendly food grade silicone-Safe for Mom & Baby,No strong odor.free from BPA, PVC, and phthalates.Suitable for various breast shapes and sizes.