Waste of money!
NOTE: These are NOT original Spectra parts. Just because they say "Spectra" on the side does not mean they're authentic. Authentic Spectra replacement parts are only sold in replacement kits that are $30 for ONE side. If you dual pump, you purchase two kits in that case. While these replacement parts are cheaper, they're not authentic. These particular parts worked great for about 5 days (I only pump 3 times per day as I nurse while at home with the baby). The parts are already worn down to where replacement parts are needed again. This is a waste of money. Invest in authentic Spectra replacement parts which are sold through their website directly or at BuyBuyBaby.
Rating: 1 stars