MainWare Main St. Bistro 15 oz 4 - Piece Mugs (Cobalt Blue) Set of 4 - Generous 15 oz ceramic mugs for your favorite coffee, tea or hot chocolate drinks Durable stoneware ceramic with gloss finish Sizable mug measuring height 4 1/8", 3 5/8" top and 5 1/4" handle for firm and comfortable grip. Dishwasher and microwave safe. Lead Free Available in 6 colors - White, Cobalt Blue, Wine, Black, Hunter Green and Mediterranean Green