1.[CREAT DELUXE FROZEN TREATS]: Compatible with Ninja Creami Deluxe NC501, NC500 series Ice Cream Maker .Simply blend your favorite frozen pints containers right in the pints and seal with the leakproof lids.Not only can ensure the optimal performance,but also best value for the fellow ice cream loving families. 2.[LEAKPROOF LIDS] Our lids are tight enough to keep the ice cream containers sealed, no more leaks or spills.The lid can insulation other smells from freezer that keeping your ice cream, yogurt, sorbet, or other frozen foods taste. 3.[4 PINTS CONTAINERS AND LIDS]:Compatible with Ninja Creami NC500 series Deluxe ice cream makers.you having the extra 4 pints containers is very convience. Cause you can creat more intersting and yammy frozen treats for you family or friends. 4.[REUSE&ECO-FRIENDLY]:Both pints and lids are BPA-free, and dishwasher safe for easy cleaning after multiple uses. They are shatterproof ,Can Reuse them to whip up all kinds of intreasting frozen treats. 5.[NOTE]: Compatible with Ninja Creami ice cream makers NC500 Series. They will not properly function with other blender models. Check your Ice Cream Maker Sku number to ensure compatibility before purchasing.