レインボートンネル

My little one figured out the size-matching almost immediately and now builds the arch on her own every morning. Watching her sort the colors while stacking is pure joy, and it holds up fine to her tossing it across the room.

The pieces click together so satisfyingly—my daughter asks to rebuild it every morning. Watching her sort the colors by size instead of just guessing has been a lovely surprise for a first puzzle.

Stacks together so smoothly that my little one builds the whole rainbow by herself now, though she still giggles every time the pieces tumble down. The color matching has gotten noticeably sharper in just a couple of weeks.