The Manufacture collection from Villeroy and Boch combines premium porcelain with high-quality craftsmanship inspired by natural materials with strong color accents. Manufacture Rock and Rock Blanc offer a light glaze that covers the porcelain. This gives the pieces that rustic, from-nature look. The color of Manufacture Rock resembles natural slate, while Rock Blanc offers pieces in a crisp white. Dishwasher and Microwave safe