The lip area of the duckbill is reinforced with stronger material so it does not tear as easy. It is designed this way so it will last longer. You might feel a little difference compared to Lansinoh's duckbill. Please give it more time. You will find this product lasts longer.
Furthermore, customer service/satisfaction is Maymom's Job #1 after the sale. 100% satisfaction or your money back. You can buy Maymom's products with confidence. Check out other Lansinoh compatible products from Maymom for your breast pump accessories needs by using the keywords 'Maymom Lansinoh' on Amazon.com.
Disclaimer Lansinoh is a registered trade mark of Lansinoh Laboratories, Inc. Maymom is not affiliated with Lansinoh nor is the product endorsed by Lansinoh.