ATC250ES ATC 250ES FRONT & REAR FENDERs 1985-1987 for HONDA Product are made with high standard proprietary thermoplastic olefinic elastomer (TPO), specifically designed for extreme conditions. This high-impact polypropylene alloy delivers a high-gloss finish with strength characteristics capable of enduring the tough weather and temperature conditions. These plastics are ultraviolet stabilized, resistant to chemicals, tougher than OEM products.