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Recognized with the prestigious iF product design award 2014, the revolutionary SpreadTHAT is the answer to an annoying household problem - hardened butter from the refrigerator. The lightweight knife is the first self-warming butter knife to work without electricity, it features a cutting-edge design and is made from highly efficient thermal conductive titanium to transmit heat from your hand to the blade of the knife, making spreading hard butter a breeze.Learn more from That inventions , or purchase now from Amazon