2-Stage Knife Sharpener 1.Diamond and Ceramic 2.Coarse and Fine sharpening 3.Wheel design,back and forth 4.CE,LFGB,SGS 2- ... for you kitchen knives, chef's knives, fruit knives, etc.2. 2-Stage, coarse grinding and fine honing/polishing make your blunt blade ... avoid damaging the knife sharpener.2. To avoid any accidents, the knife sharpener should be away from children. 2-Stage Suctorial Knife Sharpener