... and longer life than the traditional steel knife,with no need of sharpening for years Stain and rust proof ,non- ... time useUsage and care advice:It is advise to use for cutsting/slicing of fruits , bread ,vegetables ,boneless meats, ... do not use for cutting hard ,frozen or broned food.Please use with a ... m<0.6Thermal conductivityW/(m.k)2.5 Folding Utility Knife