Amazon.com: UMIACOUSTICS 3 Packs Large Sound Absorbing Panels,48 x 24 x 0.4 Inches Acoustic Panels,Decorative Sound Proof Panels in Art Curve Shaped for Wall Door. : Musical Instruments
BUBOS Art Acoustic Panels,48x12inch Premium Acoustical wall panel,Better than foam, Decorative Sound Absorbing Panel for walls, Studio Acoustic Treatment. Soundproof wall panel - Walmart.com