For 12 inch subwoofers, Compact tuned vented enclosure. 1 x only available pre made – discounted price – old prototype design clearance NOT USED AS NEW. 18mm mdf, glued, screwed, sealed, premium anthracite dark grey carpet finish with textured gloss black painted front/sides terminal cup and internal connectors and quality ofc cable ready to go internal wadding lined IMPORTANT INFO SIZING. INTERNAL VOLUME NET : 1.5 CU FT.