Create your own working metal detector with this cool building set. The Build Metal Detector Kids Science Kit by Small World Toys allows older children to construct a metal finding device. This metal detector building kit comes with a metal detector top and bottom panels, battery cover, printed circuit board, sensitivity dial, Phillips screwdriver, assembly screws, magnifier lens, and detailed illustrated instructions. It is fun to build, and even more fun to use this metal detector from Educational Toys Planet. Follow the step-by-step building instructions to assemble this kids metal detector and discover hidden coins, lost keys, metal things, and some precious treasure! The metal finding device, that you build with the Build Metal Detector Kids Science Kit, can be used indoors or outside. The metal detector lab requires a 9V battery (not included).