Precision-engineered rear speaker mounting bracket specifically designed for Smart ForTwo 453 models. Includes mounting points for Pioneer TS-1030F speakers with 1cm clearance and foam tape sealing capability. Requires M6 and M4 hardware for installation. Only printed parts, hardware NOT included. DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by the owner of the mentioned trademark. Made out of ABS because of the heat sitting in the car it can handle all day in texas heat with no air condition :) I can also make out of other materials if asked like Petg, Nylon just message me and ill let you know the cost Shipped out the next day!