Approximately 5 x 3.5 x 1.8 cm. Unused as a pill case. I've had it for several years. The lid doesn't close very tightly, so my wife says, "If you just toss this in your bag, the contents will spill out." It has a matte texture and doesn't seem to be ceramic. Golden lines are visible depending on the light, and it's beautiful. It appears to be modeled after the 15th-century icon known as "Our Lady of Perpetual Help" (Taezaru Ontasuke no Seibo).