Features High thermal performance - keeps a building cool in summer and warm in winter Non-combustible - AS 1530.1 No added formaldehyde Acoustic performance - reduced the transmission of noise 50 year warranty Earthwool® SoundShield R2.5 Wall insulation is a high density glasswool insulation that offers high performance, with exceptional acoustic and energy saving properties, creating a peaceful environment in your home by absorbing sound and keeping it where it should be. The super-soft and easy to handle benefits of Earthwool® have been further enhanced with TwinTech®. TwinTech® heralds another advancement insulation manufacture - the dual forming technique ensures there is a smooth finish on both sides of the insulation, which improves product handling and appearance. Earthwool® is made using up to 80% recycled glass and with ECOSE® Technology, a sustainable, bio-based binder that contains no added formaldehyde. They sell for $29 per piece I have 5 large bags of 14 pieces in each bag Im selling each piece for $25 each or bags of 14 For $150 each bag. I have 5 large bags in total Can deliver $20-$30