This is a functional replica of the nautical sextant. It is made of high quality brass. Each component is crafted with finest craftsmanship. Using rack and pinion mechanism, this sextant was given a heavy pattern of solid brass. Available in antique brass finish and it comes in a beautiful leather gift box. This sextant is a great addition to any nautical collection. The item dimensions are: L: 4 inches, W: 4 inches, H: 2.5 inches.