Kai Seki Magoroku Diamond and Ceramic Sharpener (AP-0308) Material: Body / ABS (acrylonitrile-butadiene-styrene) resin, transparent cover / AS (acrylonitrile-styrene) resin  ABS (acrylonitrile-butadiene-styrene) resin, elastomer resin, grinding wheel / diamond grinding wheel, ceramic grinding wheel Country of origin: Japan