If your Ninja blender is leaking or not sealing properly, these replacement gaskets will probably fix the issue. You get three in the pack, which is smart because these rubber rings do wear out over time with regular use. They're 3.94 inches in diameter with a specific design - one side has 1 groove and the other has 3 grooves. Important installation tip: make sure the 1-groove side faces down toward the blade assembly, and the 3-groove side faces out. If you put it in backwards, it won't seal right and you'll still get leaks. The food-grade rubber material is safe for contact with whatever you're blending and durable enough to handle regular use. These fit a ton of Ninja blender models including the BL450, BL456, BL480 series, CT680, and many more - but definitely double-check your specific model before ordering. When replacing, clean out the blade area thoroughly first to remove any old rubber bits or debris that might prevent a proper seal. The flexibility makes them easy to install once you get the orientation right. Having a proper seal means no more messy leaks down the side of your blender jar, which is both annoying and wasteful. At three gaskets per pack, you've got backups for when the current one eventually wears out. Much cheaper than buying a whole new blender assembly!
