Kitchen Knife Sharpening Set for Beginners

InfoBrand/: NANIWAKitchen Eraser/Size/: 50mm*40mm*20mmGrid/:Fine/Material/Fused alumina, polyvinyl chloride/Kitchen knife Diamond sharpener/Size/: 74mm*74mm*85mmGrid/: Goarse,Fine/ ,Material/Body: ABS resin, iron/ABSWhetstone: Electroplated diamond/ Suction cup: Rubber/2way Sharpener/Size/: 180mm*22mm*21mmGrid/: 3001000Material/Body: ABS resin/ABSWhetstone: Electroplated diamond/With bag/