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The 2-in-1 wrench and screwdriver is the best part — my kid actually uses it to tighten the bolts himself instead of just stacking pieces. All 40 parts have held up through daily rebuilding, and nothing has stripped or wobbled loose yet.

My four-year-old spent a solid hour building and rebuilding a little crane with these, and the bolts actually hold tight instead of slipping loose like his other set. The 40 pieces give plenty to work with, and I like that the nuts and bolts are chunky enough for small hands to grip.

The 2-in-1 wrench and screwdriver is a clever touch—my kid actually uses it to tighten everything on his own, which feels like real problem-solving. We’ve rebuilt this set into a tower, a robot, and a bridge so far, and it holds up to daily rough play without any loose pieces.