About this Youtube video: Every holiday season Amazon ships millions of packages to customers all over the world. But how are they able to ship everything so quickly while keeping prices down We got a look inside one of Amazon s California fulfillment centers to see how it all works. Tech Insider tells you all you need to know about tech gadgets how-to s gaming science digital culture and more. Subscribe to our channel and visit us at TI on Facebook TI on Instagram TI on Twitter INSIDER on Snapchat .