Hammer box set includes 3 wood balls, wood mallet, and a box to hammer the balls into. Hammer Box measures 6.0 x 6.0 x 4.1 inches. Made sustainably of rubberwood. Sanded, rounded and dovetailed corners, clear non-toxic finish. A hole in one side of the hammer box enables children to retrieve the wooden balls they have tapped, hammered and pushed through. Punch & Drop helps children to improve fine motor skills, visual and spatial perception, gross motor responses and enjoy creative play. Sustainably crafted from chemical free rubberwood trees, formaldehyde-free glues, organic pigments, water based dyes, and safety tested.