8" single sealed sub box, fits 97-04 chevy corvette c5/z06 coupe & convertible SPECIFICATIONS: -CUTOUT DIAMETER: 7 1/8" -AIR VOLUME: 0.93 FT^3 -WEIGHT: 24 LBS. -MOUNTING DEPTH: 5 1/4" DIMENSIONS: -HEIGHT: 8 1/2” -LENGTH: 21 3/4" -DEPTH: 18 1/2" CONSTRUCTION: -5/8" HIGH QUALITY MDF WOOD -2" STAPLES - HIGH QUALITY WOOD GLUE + MAINLY SEALED WITH HIGH QUALITY SILICONE+ NOT ALL SUBS WILL FIT DUE TO THE CUTOUT DIAMETER AND MOUNTING DEPTH SO PLEASE CHECK THE DIMENSIONS TO MAKE SURE THIS BOX SUITS YOUR SUBS