These are items I used to play with in elementary school. Stealth Fire 1998 Stealth Brain 1998 Hyper Brain 1998 Duncan Hyper Imperial These four items are included. The string on the Hyper Brain is torn where you put your finger, so you might want to replace it. I have confirmed that all of them work and can be played with. I can't do advanced techniques. It's possible to play them normally. Thank you.