●[High Quality] Gloss black hood vents are made of lightweight ABS plastic for smooth lines and long service time. ●[Universal] Size: (16.9"/16.7")*4.5" (430MM/425MM*115MM) (not a rectangle). Universal for most vehicles with engine hood or any sufficiently large flat surface. ●[Function] The heat in the engine compartment can rise and leave through the hood vents in time, thereby reducing the workload of the radiator and increasing the cooling capacity ●[Installation] Need to cut engine hood and drill holes! Install with tape and screws. (no reserved holes and no instructions) ●[Service] If in doubt, you can contact us. We will reply within 24 hours except holidays and weekends.