Package: Alpine Sps-610 6.5" 2 Way Pair of Coaxial Car Speakers + Alpine Sps-510 5.25" 2 Way Pair of Car Speakers 6-1/2" Type-S Series Car Speakers Tuned poly-mica cone woofer Butyl rubber surround for natural response and stability 5-1/4" Type S Series Car Speakers Poly-mica cone woofer