RAINBOW TOYFROG STEM Learning Take Apart Educational Construction Engineering with Electric Toy Drill Building Blocks Set -286 Pieces Best Toy Gift for Kids Age 6+

This seemed like a good concept but the quality was very disappointing. The nuts and bolts that create all the connections did not fasten tightly enough and the safe little "drill" really didn't work to tighten the connections. We chose the front loader project, which was pretty complex for a seven-year-old, but together we figured it out. The problem was that both during the process and after we were finished every time we tried to move a section which was supposed to be movable it would come apart and the little drill did not work to tighten the connections either. I would not recommend buying this. Buy a real Erector Set instead.

Seems to complicated for my 4 year old grandson, he doesn't have enough patients with the small pieces my 12 and 14 year old grandsons seem to feel its too tedious and they start off but loose interest before the finished product.