... 1 meter height,even the head of blade straight down) and the blade remain safe,or press the blade edge with ruler, ... notice many micro nicks on the blade edge as inferior knife is made of alumina or low purity zirconia ... .2mm, well-proportioned and excellent flexibility,when pressing the edge with ruler,blade edge will not crack ... with server Calina.Sure,we are the best OEM,ODM manufacturer of you!!!!