One of the most skilled warriors in the Stone World is ready to carve out a place for herself in merch collections everywhere, and considering how good she is with a knife, it should be a pretty easy feat. Featuring Kohaku in chibi form, this keychain is made of high quality acrylic which means it's just as tough as it is cute, much like the Kingdom of Science's resident lioness. With a sturdy metal clip that makes it easy to attach to your keys, bag, or backpack, this keychain is perfect for Dr. Stone fans.