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The Ringsulator® was invented and is proudly produced here in the U.S. in Holland, Michigan. Our patented and registered trademarked product is injection molded and locally screen printed. Made from a rubbery TPE, our Ringsulators® are soft but durable, ready to be used again and a again.
NO TRICKS. JUST SIMPLE SCIENCE.
Ringsulator® work because they reduce the amount of heat transfer between your cup and its surroundings. How do they do this? By creating an air gap. Air is an excellent insulator. Insulation creates resistance, resistance means slower rate of heat transfer, and a slower rate means your drink stays colder longer. Using a Ringsulator® is 180x more insulating than one plastic cup and even outperforms Styrofoam cups.
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