Twin 12inch Subwoofer Twin Slot Ported Box Condition is 100% ?

dual 12" subwoofer box with Phonocar 4/950 3.5" Flared Port Kit this is made from mdf 3/4" Phonocar 4/950 3.5" Flared Port Kit. This aeroport kit is ideal for constructing a bass reflex enclosure. Kit comprises: 1 x tube 27cm - Ø 90 mm (3 1/2") 1 x tube 13 cm - Ø 90 mm (3 1/2") 2 x anti-turbulance flared ends covered with black carpet and has 2 x binding posts one each end this is not a self built box its professionally made and is very good quality !!!! cost well over 200 whaen i bought it . its immaculate ........ dimensions are as follows 32" long 16" wide at bottom 11.5" at top 14.5" height this is a wedge shaped box hence the measurements grab a bargain