Blend it up in the cups, twist on the included sip and seal lids, and take these Ninja 24-Ounce Stainless Steel Nutri Ninja cups on-the-go. Although the blender isn't included, this incredibly lustrous and sleek cup is compatible with all Ninja Auto-iQ blenders, kitchen systems, and compact systems. It has durable, double-walled insulation that keeps beverages cold for up to 4 hours. The sip and seal lid makes your life on-the-run easier and the slim design fits and rides along with you in your cup holder and is a perfect little commuter companion. This 24-ounce stainless steel cup simply attaches to the Pro Extractor blades on your blender to crush through whole fruits, veggies, nuts, seeds, and tough ice. Get the coolest blender cup on the market and show up to your destination with this sophisticated and long-lasting Ninja Stainless Steel Nutri Ninja Cup.