1.[Compatibility]: These ice cream containers are suitable for NC301, NC300, NC299AMZ, CN305A and CN301CO series (not compatible with NC501). It is not suitable for NC500 or NC501 series. Please be sure to check your machine model carefully before purchasing. Do not overfill and do not exceed the maximum capacity line 2.[High-quality Materials]: Our smoothie cups with lids are made of high-quality materials, lightweight, durable, BPA-, high temperature resistant, and reusable, allowing you to store your favorite ice cream and frozen desserts with confidence. The upgraded sealing lid helps to store fresh frozen foods and prevent leakage or spillage 3.[Upgraded Design]: The bottom of the containers replacement for ninja creami pints and lids has multiple protrusions, which allows you to hold the container with greater friction and easily open the lid. The enhanced notch can also fit seamlessly with the outer bowl of the ice cream machine, ensuring an easy transition to a soft and creamy texture 4.[4 Color Silicone Lids]: Reusable ice cream containers have 4 colors of silicone lids: blue, pink, gray, green, which are easy to distinguish, allowing you to have a rich reserve of ice cream with different flavors at home. The containers for ninja creami have a transparent container design, allowing you to easily identify without labels and notes