The puzzle has many possibilities and as soon as you start trying to take it apart you will notice its several protrusions hinder your path. These are the challenges you must overcome. Each piece is solid so that you can feel its weight when you hold it in your hands. But as you start to play with it you will see a level of sophistication uncovered. Each piece is solid so that you can feel its weight when you hold it in your hands You can see the sophistication in what, at a glance, looks like a rugged design The puzzle has many possibilities and, as soon as you start trying to take it apart, you will notice the several protrusions that will hinder your path Hours of fun