As you open 24 windows one by one you'll get to build iconic items from the world of Harry Potter™, created by J.K. Rowling. These are 24 fun little mechanical toys with spinning gears. Each DIY magical miniature model has its own movement to engage young minds and teach basic principles of mechanics. As an extra holiday decorating bonus, many models have a hanging loop, making them perfect ornaments for the Christmas tree. Assembly is fun and easy and can be accomplished in a few minutes. Here are Harry Potter™, Hermione Granger™ and Ronald Weasley™, the emblems of the Hogwarts™ School, Golden Snitch™, Harry's Spellbook, Sorting Hat™, Gringotts™ Coins, Buckbeak™ hippogriff, Time-Turner, Platform 9 ¾™ and many others.