Engino Creative Builder 25合1多模型組 STEM工程玩具 適合6歲以上兒童（可組裝25種模型）

The excavator model actually scoops and lifts, which kept my 7-year-old busy for a solid hour before he moved on to the race car. Instructions are picture-based so he could follow most of the 25 builds on his own.

The 25 different models kept my son busy for hours—he started with the race car then moved straight to the crane. Pieces snap together firmly and actually stay put when he plays with them, which hasn't been the case with other building sets we've tried.

Got this for my daughter's 7th birthday and she's already worked through 6 of the 25 models. The pieces snap together tight enough that her bulldozer actually survived a tumble down the stairs.