彩虹隧道

My 2-year-old figured out the size order on her own after a few tries, which was fun to watch. The pieces nest together neatly so cleanup is quick, and the colors are bright enough to hold her attention.

Stacking these pieces into the full rainbow is so satisfying — the colors are bright and the sizes progress clearly, so my daughter can match them herself now.

My 2-year-old figured out how to stack the arches by color within a day, and now she lines them up by size on her own. The pieces are chunky enough for small hands to grip without frustration, which makes it a solid first puzzle.