Our daughter loves her wooden marble run. Through the various "vehicles" it does not lose interest in it, even though the objects are still rather thrown on the ground or "intervened" when they are sent down the track. The jumping jack device as a single figure at times from the track and increased, but the easier our daughter can take it out then. We have modeled the wooden marble run into a wall and not screwed. So far it has withstood the onslaughts. All parts can be wiped or washed with a damp cloth, without losing color. A worthwhile purchase for us.
