Oil Brass Kaleidoscope. A clear barrel filled with oil is used to create movement: glass beads, natural stones and other special elements float within the oil. The smooth movement of the objects occurs independently without need of human intervention. The user can just watch and enjoy the spectacular images flowing in harmony and changing every moment before our eyes. Amazing and a very special gift for anyone. Made from polished brass, high grade optical mirrors, natural stones and colored crystal glass beads.