Let the treasure hunting begin. Use the Thames & Kosmos Metal Detector to detect metal objects like gold, silver, iron, copper, and more that are buried up to six inches deep in sand, dirt, or grass. The integrated digital display provides visual feedback as you home in on a metal object and emits a clear ""beep"" when you find your mark. Quickly and easily adjust the angle of the metal detector to explore. With a lightweight design, this is the perfect exploration tool for kids (and adults) of all ages.