Mighty Mug is powered by innovative and patented Smartgrip Technology. Simply place Mighty Mug down on your desk and it creates a powerful airlock which allows Mighty Mug to resist accidental knocks to help avoid spills. When you lift Mighty Mug the pressure is instantly normalized allowing the airlock to release and Mighty Mug to lift naturally. You need to ... more on Danube DirectBuy it from Danube Direct
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