My 3yr old son got this as a Christmas present an absolutely loves it.It keeps him intertained and loves to do the projects. The only drawbackis that I wish there were more durafoam pieces.  This is why i gave thisa four star instead of five stars .  Step 2 should at least sell a set thatyou can buy to get more of the durafoam. Overall it is an excellent item.You will not be disappointed.