Feature 1100% carbon fiber material manufactured, it is lightweight, odorless and no toxic. 2Will not deform, do not fade, and high temperature resistance, extremely durable. 3Protect your smart key from everyday wear and tear, and keep it stay as bright as new. 4Compact size, small and convenient, easy to carry and store. 5A perfect replacement for your key with broken buttons or worn key blade. Features: 100% carbon fiber material manufactured, it is lightweight, odorless and no toxic. Will not deform, do not fade, and high temperature resistance, extremely durable. Protect your smart key from everyday wear and tear, and keep it stay as bright as new. Compact size, small and convenient, easy to carry and store. A perfect replacement for your key with broken buttons or worn key blade. Fit for Mercedes Benz E class W213 2016-2018, for Mercedes Benz S class W222 2014-2018. Specification: Condition: 100% Brand New Material: Carbon fiber (Dry carbon) Color: Carbon fiber Package Weight: Approx. 11g / 0.4oz Fitment: for Mercedes Benz E class W213 2016-2018 for Mercedes Benz S class W222 2014-2018 Packaged Included: 1 * Key Shell Cover Note: 1. Please ensure your current remote key and key blade fits exactly the same as in the specifications and the key sample picture. 2.This is just a key shell case, there is NO interior (no remote/no electronics/no transponder chips) inside.