This is a large toy cube on a keychain. I've been thinking about adding this to my son's school bag as he collects keychains on it, but this one is too big for that. It would be nice as a small fidget toy to keep the kid busy for a few minutes. I'm not sure I would hang it on my bag because of the size. There is no puzzle inside, you just unfold it and then you can fold it back together. Though it's hard to remember how to get him back the way he was, so maybe that's the riddle!
Ultimate Titanium KeySmart: A Must-Have Organizer for Men's Accessories
49 Review
TISUR Titanium Keyring with Side Pushing Design - Stylish Men's Accessory in Keyrings & Keychains
31 Review
Carry Your Love For Firefly Everywhere With QMx'S High-Quality HD Key Chain
34 Review
Custom Engraved Silver FAINOL Boyfriend Keychain
27 Review