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Braille Liquid Level Indicator

Just place it on the rim of a mug, pour in the hot coffee, and wait for the tone to sound.


  • Avoid over-filling and messy spills
  • Can even be used for filling plastic and paper cups
  • Durable means you don’t have to tell when to stop filling the cup by hooking your finger over the rim … and thus burning your fingertip.

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*Actual Prices may be different from the prices listed