Our most popular building toy other than LEGO, Plus-Plus encourages kids to use their imagination by building with pieces that are all a single size and shape. The Plus-Plus Learn To Build set contains everything you need to get started with this unique construction toy. A Guide Book gives step-by step instructions to build flat mosaics and 3D creations - animals, people, buildings and more! WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs.