Dual 12" Vented Speaker Box made from high grade MDF wood then finished with durable Bed Liner spray Dual 12 Inch Sub Box vented enclosures designed to hold 2 Subwoofers (not included) playing your music; Rock out and let the streets hear your anthems Dual-chamber design of 12 inch speaker box makes your sound twice as hard; Strong bass and smooth audio enhancement by your 12 inch subwoofer box will make your ride twice as fun Keep yourself and your 12in car speakers safe with a shared slot port vent design inside the 2 12 inch subwoofer box that ensures the speakers stay cool Put some class in your car with the 12 inch subwoofer enclosure built with durable black bed liner spray finish; Impress your friends and family with a stylish yet tough 12 inch subwoofer speaker box Dimensions (L x W x H): 14 x 32 x 13.25 inches, Cutout diameter: 11 inches, Air space (per sub): 1.5 cubic feet, MDF construction: 0.75 inch, Tuning frequency: 40 hZ