Cuppow began as a solution for easier drinking from a canning jar. The canning jar already makes an awesome platform for a travel mug: it's easy to clean, made of heat-resistant glass, cheap, durable, and when sealed it doesn't leak. The only problem is that with their large openings, canning

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Cuppow BNTO Widemouth Jar Lunchbox Adaptor
177 mL
Natural Product
$10.99