タンブルトラックス™ マグネットビー玉コースター - 28ピース

The magnetic foam tiles snap together easily, so my kids can build a new marble run in minutes and then flip the zany patterns around to change the look. My 7-year-old figured out how to angle the pieces for a longer drop a lot faster than I expected, and it's held up to daily play without peeling.

My 6-year-old figured out how to angle the pieces so the marble actually picks up speed, and now she's building runs that span the whole fridge door. The foam is thick enough that nothing dents when it falls, which I appreciate. We've lost maybe two marbles under the couch so far.

The magnetic foam pieces stick right to the fridge, so my 6-year-old builds new runs while I'm cooking instead of asking for a screen. It's wild how much thinking goes into getting the marble to actually reach the bottom, and she's redesigned it a dozen times already.