The Street Pro Rear Side Splitters are made of a durable 10 mm thick ABS plastic plate. They are designed to withstand impact and scratch damage, and the lack of metal elements prevents any corrosion of the part. The new design features a stylish edge finish and a UV protective coating, making them resilient to weather elements and capable of withstanding high and low temperatures. The products are secured with protective foil and do not require painting. If you decide to color paint the part, primer must be used prior to painting. Parts are labeled confirming authenticity and quality of the product. This product has been TUV MATERIALGUTACHTEN certified.