The BlenderBottle Radian Stainless Steel Insulated Shaker Bottle is an entirely unique shaker experience, featuring a double-wall vacuum insulated bottle, surgical-grade stainless steel wire whisk, center-mounted spout, detachable carry loop, and secure seal cap. At 26-ounces (measurement markings to 18 ounces), the insulated bottle has plenty of room to mix supplements or meal replacement smoothies, using the BlenderBall Whisk, which delivers smooth shakes in seconds without batteries, cords, or hassle. It can also be used as an insulated water bottle. The twist-on cap closes with a quick quarter turn for a secure seal, and Leak-Proof Guarantee, while the wide mouth accommodates oversized scoops, and makes it easy to clean the cup. A detachable carry loop provides convenience for attaching keys or hooking the bottle to a gym bag. All BlenderBottle Radian Stainless Steel Insulated Shaker Bottles are made from high-quality, BPA and phthalate-free materials. Bottle measures 4.3 x 4.3 x 10 inches. Lid is dishwasher safe; hand wash cup. Not for use with hot liquids.