It comes in Pair. Glued and Braced. Screwed Down Terminal Cups. Completely Carpeted Enclosure. MDF Constructed. Push & Insert Speaker Terminals help ensure a solid grip on the speaker wires for music signal transfer. Terminal cups are sealed and screwed tight to the enclosure to ensure no air leaks. PREMIUM SOUND BOX: We use OEM charcoal carpet for the large subwoofer box to give it the durable factory look that matches the interior of most vehicles. It also helps absorb vibrations to produce the best possible sound. AIRTIGHT RECESSED SIDE PANELS – By using quality materials and aliphatic resin wood glue the solid construction of our speaker boxes are airtight and resonant free to reduce rattles and improve the overall sound quality of your sound system. HIGH GRADE MDF – Our speaker box enclosures are built with a durable high-grade MDF that is 5/8 inches thick built for solid frequency response and accurate music reproduction; The thick MDF panels allows the speaker box to withstand even heavier 6x9 speakers. TWO 6x9 SPEAKER BOX ENCLOSURES: Pair of premium Pro Audio Tuned built universal speaker enclosures that reduces rattling and vastly improves your overall sound quality and bass of your speaker system. Whether in need of car speaker boxes or enclosures or using with a home system, motorhome, truck or even an ATV, these enclosures will turn anything into a music machine.