Sold Individually. Lead-free, dishwasher and microwave safe, this richly-colored mug shaped like a beaker is handcrafted and painted by Mexican artisans. While a very functional piece, the outside, inside, and handle are covered with a textured pattern making each piece unique. 4 inches tall.Meet the Artisans Theres no sign to find the small family-owned ceramic workshop in the state of Guanajuato. Behind the large wooden gate, women artisans are hand painting unfired ceramics while men work the kilns, as they have since the late 70s. Each piece has personality from the dots and swirls to the handpainted logo on the bottom. And each is lead free, microwave and dishwasher safe.