Toddlers love the motion and sound of pounding the wooden balls through the snug-fitting holes, then the fun begins all over again as the balls reappear below the play surface! Circular cut-outs have tough vinyl rings inside holes to hold balls in place. Hours of problem solving fun! Improves gross-motor skills Sturdy wooden construction with rounded corners and smooth edges, safe non-toxic paints with a clear finish. raised base accommodates floor or tabletop play.