This is a well-made, wooden marble run set. I purchased it (for about $15.00 more at a local toy store) for my grandchildren. Both the boys and the girls have had a great time playing with it. The possible runs / mazes are endless and require creativity and teamwork. They have also used it in conjunction with their Hot Wheels and / or Legos sets to create some rather unique configurations. As always, when using small pieces with young children, adult supervision is required.