"Hammering House by Small Foot – Sturdy Wood Toy for Toddlers and Children - 6 Piece Set Includes House, Hammer & 4 Balls - Develops Kids Dexterity, Coordination, Concentration Skills – Age 18+ Months This is a classic hammering game with four different brightly colored balls that are tapped through holes and then roll back out through the front door where little hands can easily retrieve them.