Polymat Audio 30 Ft By 3.75 Ft Wide Charcoal Car Sub Woofer Speaker Box, Dj Enclosure Latex Backed Carpet and Trunk 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