Johns Manville Sound Control R-19 Unfaced Fiberglass Batt Insulation (Model AU3955). Dimensions: 16 inches wide x 96 inches long, covering approximately 96 square feet. Designed specifically for interior wall cavities to provide both thermal performance and enhanced sound attenuation between living spaces. Unfaced design allows for flexible installation. Condition is like new and in original box with no damage or missing pieces. A great value for DIY renovators, contractors, or anyone soundproofing a home theater, bedroom, or shared wall.