Under $20 Inverse Cosmo Keychain

Round, bold, and brainy—the Cosmo Keychain is your new pocket-sized obsession.

Get ready to orbit a whole new puzzle experience with the Cosmo Puzzle Keychain. Unlike typical cube-shaped brainteasers, this compact sphere challenges players with a unique twist-and-align solve that's as mesmerizing as it is portable.

Clip it to your backpack, keys, or jacket and take the fun wherever you go. Its smooth, round design fits perfectly in your palm, offering a fresh spin on fidget-friendly puzzle play. Great for all ages, this little cosmic challenge is ideal for puzzlers looking for something outside the box—literally.

For ages 8 and up.

Difficulty Level: Intermediate