These side skirts diffusers are made of ABS plastic, which is characterized by increased strength and flexibility. The product has been TUV MATERIALGUTACHTEN certified (TUV certify for material). The side skirts diffusers are designed to withstand more 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 UV protective coating, making it resilient to weather elements.