... Anti-corrosion,anti-bacterial Ceramic Knife Set With Acrylic Block:Products detail:Model &Type:CCEX-CJ004W2 ... as customer requestIncluding SIze:3"+5"+6" with Acrylic BlockPacking:1 pc/gift box,36 pcs/ ... non-adhesion,very easy to cleanNo chemical reaction with the food ,no metallic taste and smellAnti- ... board ,Avoid cutting on marble ,stone, glass surfacewash by hand with water and liquid dish soap , ...