acrylic knife display box: 1.size: 3inch ,4inch,5inch, 6inch knife&peeler 2 ... cutting hard ,frozen or broned food.Please use with a plastic or wooden cutting board ,Avoid cutting on marble ,stone, glass ... middle bleach solutionPlease put it on the knife set or plastic scabbard after you finished using the knife,keep it away ... >1150Grain sizeµm<0.6Thermal conductivityW/(m.k)2.5 acrylic knife display box