* New Patent-Pending Carrying Loop * New Ergonomic Flip Cap and Spout * BlenderBall Whisk Inside * 100% Leak-Proof Seal * Embossed Ounce and Milliliter Markings * StayOpen Flip Cap won"t Close on Your Nose * GripperBars Make it Easy to Hold * Easy to Clean—Dishwasher Safe * Fits in Most Car Drink Holders * BPA and Phthalate Free The BlenderBottle Classic is the #1 best-selling shaker cup for a reason – it works. The patented BlenderBall wire whisk whips around inside the bottle as you shake, mixing even the thickest ingredients with ease.