The product is add on model !!!! No plastic bracket inside!!! Installation is required to have the original rear view mirror!!!! If you do not read the description of the order to buy the wrong we will blacklist you!!! M Style Mirror cover For Opel Vauxhall Astra J MK6 2010-2013 Style:M Style Mirror cover, Make your Car Look Cool and Enhance Visual Impact Material :Made from High Quality PP Material with Ultra Light Weight and Durability Warranty :6 Months Package Include: 1 Pair Rear View Mirror Cover (Both Left and Right) Compatible:For Opel Vauxhall Astra J MK6 Sedan Hatchback 2010-2013 Because the Astra model is very complicated, please make sure it is the same as this rearview mirror,If you are not sure whether it is suitable or not, please contact us and attach with your vehicle information. Install Direct Add-on Designed for Easy Installation. Add on mirror cover have not plastic holders inside. The installation method is use adhesive tape to install it on the top of original mirror cover. Display Notice 1. Please Check WhetherIt Applies To Your Car BeforeYou Purchase. 2. If You Have Any Questions ,Please Feel Free To Contact With Us ,Thanks.