Two-stage Sharpening Electric Knife sharpener 1.it is suitable for non-serrated blade. 2.material: ABS plastic with silver. power: 120V,60HZ,40W or AC 230V,50HZ,40W material: ABS plastic with silver coated product size:20.3x14.6x9.2cm stone material:brown fused alumina,density is 120grit and 180grit shield pole motor