This busy bag is a handful of different colored and different shaped buttons. There were a total of 6 colors and shapes and two plates with three sections each, so it’s good for sorting colors and shapes. Well, maybe not so much sorting if you’re 2. But ds5 sorted a few times before he was tired of the bag. (Again, there were two plates, but these photos were before we discovered that!)
This one is good for the younger set, especially with a little guidance. Good fine motor skills, and can also be used as practice with colors and shapes. I’d go with around ages 2-5 and or some letter interest.