MetalMixer Original All-in-one System - Stainless Steel Shaker Bottle, Built-in Mixing Lid, and Twist-on Storage, 24 Ounce NEVER WORRY ABOUT STINKY SHAKERS AGAIN! Metalmixer's light weight stainless steel construction makes it the strongest, safest, and best smelling shaker bottle on the market. TOP RACK DISHWASHER SAFE: MetalMixer will come out of the dishwasher smelling good as new. TWIST ON STORAGE: Stop worrying about where you will put your protein when you are on the go, because with MetalMixer's storage system you can take protein, supplements, or snacks everywhere. BPA FREE LID AND ULTIMATE MIXING POWER: The BPA free plastic lid has a powerful built-in mixer which combines with the included stainless steel mixing ball for the ultimate mixing power. BEST LIFETIME WARRANTY OUT THERE: If this is not the nicest protein shaker you have ever used, not only will we give you a full refund, we will send you another MetalMixer for free! 100% Customer Satisfaction is Guaranteed!