Owens Corning R12 Pink Fiberglas Insulation

R12 insulation with RSI-2.1 rating. It's 3.5" (89 mm) thick, 15" (381 mm) wide, and 47" (1194 mm) long. Each bag contains 20 pieces, covering 97.9 sq. ft. (9.10 sq. metres). This is for 2x4 walls. Unopened. $40 firm