The idea is simple. Under each of the 24 flaps is a little Lego set - all Star Wars of course. Some are ships, some figures and some equipment. I was allowed to opened up to the 12th but managed to get to the 20th quite soon. I am sorry to report that I succumbed to the dark side of the Force as I had opened the rest before I left for home!
For any Star Wars fan (young and old) this is great and do I regret opening all the flaps? No, not one bit!!