This is a sequential discovery puzzle box called "Where's My Hammer." It's made from genuine mahogany, black walnut, wenge, sapele, bocot, zebrawood, cherry, maple, leopardwood and morado. It has a beautiful mosaic tile top and sides. This creative design showcases each wood species in an eye catching and unique fashion. Puzzle boxes are fun, rewarding to solve, and make a great gift for the inquisitive individual. Placing items in this box may interfere with the opening mechanism. This puzzle box measures 6.25" long x 4.25" wide x 3" high. Wood puzzles are affected by humidity and should be stored between 40%-60% relative humidity to maintain proper function.