This air intake hose pair is specifically designed to fit GL450, GL550, ML550, W166, and GL63 models. The set includes a left-hand hose with manufacturer part number RZ245 and an identical right-hand hose. The hose is made of high-quality plastic and rubber materials that are petroleum resistant and reinforced for better performance. It is suitable for air fluid type, and its finish is matte. The item is not vintage, and it is not a universal fitment. It is manufactured in China and comes with OE/OEM part numbers 2780902582 and 2780902482. The hose set is placed in the engine compartment on the left and right sides of the vehicle. Exact item pair is shown. New without original packaging. Made in China. No returns on installed items or partial sets. Please review our business policies in our store for information regarding returns, shipping and warranties.