Chef'sChoice model 120 Diamond Hone EdgeSelect Plus Knife Sharpener - White Type: Knife Sharpeners Features: Works for gourmet chef knives, butcher knives, sporting knives, serrated knives,100% diamond abrasive will never detemper,Unique Trizor-Plus edge provides greater sharpness and durability,Three-year household warranty,125 Watts Material: Synthetic