Poly-fiber can withstand the rigors of car door, as well as deliver the subtle nuances in music that only a true audiophile will notice. 6.5 Fiberglass & Aluminum Fleck Cone Mid/Bass Driver. 12 dB Two Way Passive Crossover.This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Speakers & Speaker Systems". The seller is "italiahifi" and is located in this country: US. This item can be shipped to United States.