Aftermarket replacement flip key shell fit for Octavia, Fabia 2 button remote key up to 2009. If your original casing of Octavia / Fabia is damaged, cracked, worn-out or flip is not working properly, then you can buy this aftermarket replacement casing to change the original casing. This is an empty key shell without any remote circuit inside it. DIY Procedure: Open your original key casing. Transfer your internal electronics, such as immobilizer/transponder chip, remote circuit, and battery of original flip key into the new shell exactly as in the original key. Remember to place the immobilizer chip nearby the key head provision provided and glue the chip at one corner to fit well. You have to take your old key blade and new uncut blade supplied along with the shell to an automotive locksmith to get it duplicated. You will be charged for the cutting of the blade. In case if you are not thorough with the DIY procedure, we recommend you visit your nearest locksmith to get it done.