After mastering wooden peg style puzzles, this 3D puzzle will be a good and interesting challenge for your toddler. It teaches spacial awareness and size discrimination (smaller-bigger). It's a puzzle that allows your child to self-correct, which means they will see directly if they did it correctly (no pieces left) or missed some parts (some pieces are not in the puzzle). This will encourage them to solve the puzzle on their own.
Introduce it to your baby at approximately 23 months.