Compatible Model: Replacement for MacBook Air 13" Model A2338 M1 2020 2021 Year EMC 3578 Keycaps ; | For installation, please check the relevant tutorials or see our illustration.Improper operation will damage the buckle inside .(This is the keycap, not the entire keyboard.) | The normal keys of this for A23378 key cap are gently pried from the bottom of the key cap with a tool. | !!! Note that the top row of key caps, such as ESC and F1, need to be pried from the left side with tools. | Before purchasing, please check whether the model corresponds to the product you need. If you are unsure, please contact us in time.