This Puzzle by Number Activity Pad from Plus-Plus includes 12 activity spreads that guide children to build the same design in both 2D and 3D. Spiral-bound pages and a compact storage box holding 125 colorful pieces make this ideal for travel and quiet play at home. Transportation-themed projects let children create airplanes, trucks, hot air balloons and more while following numbered guides that help develop spatial reasoning and fine motor skills. This is made from materials free from endocrine-disrupting substances and is age recommendation 5+, with durable pieces that click together for sturdy 3D models.