Item no., w075f/b075f, w100f/b100f, w125f/b125f, w121f/b121f, ws121f/bs121f Weight(g), 40, 42, 68, 89, 89 Blade size(mm), 75*20*1.6, 100*21*1.6, 125*25*1.8, 121*33*1.8, 121*33*1.8 Handle length(mm), 115, 115, 125, 145, 145 Total length(mm), 172, 195, 232, 242, 242 Item no., w150f/b150f, w151f/b151f, wb151f/bb151f, w175f/b175f, w200f/b200f Weight(g), 104, 98, 98, 135, 150 Blade size(mm), 150*35*1.8, 150*30*1.8, 150*30*1.8, 175*40*2.1, 200*43*2.1 Handle length(mm), 145, 145, 145, 162, 162 Total length(mm), 272, 272, 272, 310, 335 Odm choice for you! Safe packing or on requirements for ceramic blade knife