This compass is made of copper w/an acrylic mirror surface. It has a flip top lid, pocket-watch style, luminous dial for easy reading at night or in the dark (like in a cave or deep underwater). It's a portable pocket compass that's easy & convenient to carry. Excellent for hiking, camping and other outdoor activities; or great to give as a holiday or birthday gift for your friends, kids, or family members. 0.6" H x 2" Diameter