The beach stones used are Greywacke which is a German word meaning grey earthy rock. They are common on the shores of the Pacific where I live. Their neutral, earthy appearance inspire a completely organic feeling particularly when crowned with a natural wood shade. All the fittings are solid brass or brass plated. Rocks, being what they are, necessarily makes each lamp unique and therefore hard to list as precise sizes. Most base rocks are are 8″ to 10″ in diameter although not necessarily exactly round. Lamp heights range from 10″ to 12″ The shade is 9″ x 9″ poplar drum shade with brass rings and harp.