Tumbler rolling sharpener

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We don’t think you should have to be a knifesmith to own sharp knives. Get amazing knife sharpening, restoration and repair results within minutes with Tumbler. Sharpen the most unique to your basic everyday household knives. Don't like Tumbler for any reason? Send it back for a full refund. That's our satisfaction guarantee.

You’re probably getting a lot of Earth Day emails today, right? They’re urging you to choose more sustainable options and vote for the planet with your dollar. They’re not wrong. The products we buy matter. But you know what matters even more? Buying less. We’re charging an extra $1 for every menstrual cup we're selling and will match it with an extra $1 from June. All contributions will go to We think it’s a better way to celebrate Earth, together.