Culver SLAT Mug, 16-Ounce, Grey Ocean Blue, Set of 4 Culver SLAT Mug 16-Ounce Set of 4 SLAT mugs are elegant and colorful inner reactive glaze Contrasting glossy grey exterior, Extra large comfort-grip handle Culver Ceramic Mugs are Food Safe, Microwave Safe, Dishwasher Safe Manufactured in China for Culver Industries, Inc. Hand inspected, packed, and distributed from Pittsburgh, PA