... ,never wear,hardness(HRA87)is second only to diamond,wear a metal knife 60 time. green,lead-free,non-toxic,acid ... high altitude in knife throwing knife broken;* Do not knock a knife, pry, fall and impact, do not use the knife ... is very popular in America, Europe and Gemany, etc. (KCP-014) Nice!!! Green PP Handle Rotary Ceramic Slicer Ceramic Peeler