Hey coffee lovers! If you're tired of constantly buying disposable paper filters for your Ninja coffee maker, this reusable permanent filter is about to change your coffee game. Designed specifically for Ninja models like CM300, CM305, CM360, CM371, CM400 and several others (seriously, it fits like 12 different models), this surgical-grade stainless steel filter is built to last. The #4 cone shape with gold tone coating allows your coffee's full flavor to come through while trapping even the finest sediments - no more gritty coffee at the bottom of your cup! What's really great is how much money you'll save over time - no more running out of paper filters or adding to landfill waste. The micro-mesh design gives you that optimal flow rate for a perfectly balanced brew every time. Cleaning is super easy too - just rinse under running water and you're good to go for your next pot. The durable construction means it won't warp or degrade with regular use and cleaning. I've noticed my coffee actually tastes richer since switching to a permanent filter - it allows more of the natural coffee oils through compared to paper filters. The 5.35x2.42x4 inch size fits perfectly in Ninja coffee makers, and it works for both hot and cold brew settings. If you're serious about your coffee and want to reduce waste while improving flavor, this reusable filter is absolutely worth the investment. Your morning brew will thank you!