The ProZorber is a Guilford fabric-wrapped 6-7pcf rigid fiberglass (Owens Corning 705) panel with a scrim backer. Choose the ProZorber for the most stylish, elegant look for your studio, rehearsal or broadcast environment, and even for your living room listening area! Features include: • NRC .95 for 2? panels and NRC .80 for 1 • The square edges offer more absorption than beveled edges – over 8% more for the 1? and nearly 17% more for the 2? • Includes impaling clips for permanent and semi-permanent installation • Optional 2? offset impaling clips for increased bass absorption • Over 30% savings compared to the current popular products • Class A fire-rated • 100% made in the USA • Each panel arrives in a custom-sized white cardboard box with prominent red label.