It is especially nice to watch, we he first you round parts sunk unerringly and refined his hand motor functions over time to sink the angular parts in the correct hole.
Meanwhile, he urges us to play the part and squeaks satisfied when we applaud him after the successful "Putting".
The build quality is great, no sharp edges and corners and you can actually sink the blocks only in the matching holes. I had initially thought that this is not so.
The colors are gaudy and colorful so sorry I am for all advocates of wooden toys, and the material is ok. Since we have not connected ourselves to the Alnatura organic hype, we can therefore live fine with the sturdy plastic :-)