The Cactuar itself is made of PVC plastic while the strap consists of two pieces of suede leather sewn together. It looks really nice on my phone, but I wouldn't recommend having it on your phone if you're the type to keep your phone in your pocket. The three needles on top of the Cactuar's head is liable to get caught onto pocket thread and break off; they're rather small and therefore more breakable than the rest of the figure. Definitely would not recommend using it as a keychain for that very reason. If you're careful with your phone, then strap that Cactuar in. Otherwise, I would suggest finding a less delicately-made charm for your phone.