What is the difference between FRAX and FRAX share?

Could you please explain to me in simple terms what is the key difference between FRAX and FRAX share? I've heard about them but am still a bit confused about their distinct features and functionalities. FRAX seems to be a stablecoin, but how does FRAX share fit into this picture? Is it a governance token or something else? Could you also elaborate on their respective roles in the crypto ecosystem and any potential advantages or disadvantages they might have? Thank you for clarifying this for me.