The Evenflo Manual Breast Pump is a simple way to support breast feeding for your baby. The Evenflo Manual Breast Pump is small, handheld, portable, convenient and diaper-bag ready. Only 8 pieces that can be easily taken apart and assembled back together for thorough cleaning. The pump is fitted with a silicone MemoryFlex fastener that ensures smooth return for effective milk expression. Evenflo pumps have a flange size of 28.5 mm and also come with a soft silicone reducing insert to 24.5 mm if a smaller size is needed. The sleek design feels good to moms and allows for discreet pumping. The Evenflo Manual Breast Pump comes with a 5 ounce bottle size to allow for more milk collection. All components are made without BPA.