Small construction toy

I got S a small construction toy set. I liked the bright vibrant colours, but I didn't like it that some parts were loose. S gets frustrated easily when the parts are loose and keeps falling off. I keep telling him to be patient, but it's difficult to be patient when you're a 3-year old. He will be turning 4 soon and but sometimes still finds it difficult to attach some parts as one needs fine motor skills to do this. Perhaps this toy would be good for an older child.

He likes to build things with this. Personally, I found it a bit difficult to make things as there is no instruction, just photographs of the models. Anyway, just use your imagination will do, as S did.

He made a car carrier