Looking for the perfect project for hours of creative engineering? The UGears Safe puzzle kit comes with everything you need to build your own tabletop mechanical safe. The pieces are carefully cut to fit together precisely, so no glue is required. After the challenging assembly, this puzzle works as a fully functional safe, perfect for trinkets and small surprises. The pattern is designed after a real safe closet box but is made of real, fresh-smelling carved plywood with intricate gear systems that can be observed through strategic windows during operation.