The jewel of the Wusthof collection, IKON has beautifully designed handles made of Grenadill wood. Grenadill wood, or African Blackwood, is one of the hardest and heaviest woods in the world. IKON full-tang knives are precision-forged from a single piece of an exclusive high-carbon stainless steel and feature a distinctive, double bolster. To ensure that your knives stay beautifully sharp the IKON 1" Double Bolster Steel should be used regularly. Over time, knives will deteriorate and lose their edge. Honing re-aligns the microscopic teeth in the blade that cant be seen with the naked eye. By regularly honing your knives, you will maximize the time in between sharpening.