Polymat Audio 3ft 48" Wide Black Sub Woofer Speaker Box Enclosure Carpet and Trunk Latex Backed Liner Non-woven Fabric will not unravel Extremely durable stands up to heavy use Extremely durable; stands up to heavy use Easy to cut, fit, and mold to desired shape or size. Resists stains, mold, and mildew High resistance to gas, oil, and salt Solution dyed polypropylene for good colorfastness and UV protection Exclusive Authorized seller: bargainshore