SONEX Pyramids 2" x 2' x 2' Acoustic Soundproofing Panels - 14 per Box
Amazon.com: Sonic Acoustics 12 Pack Acoustic Foam Panels 0.4" X 12" X 12" Sound Absorbing Panel, 3D Unique Soundproof Foam Insulation, Foam Padding Used in Home & Offices (12 Pack, White) :
planeo acoustic panels Comfort - white oak 250 x 30 cm | 3mm felt backing - Wall Cladding
Fabric Acoustic Panels - FR701 | Audimute
Soundproof Cow - Class A™ Acoustic Foam Panel 2"
Acoustic Pyramid White 3"X 24"X 48" (2 Pack) Studio Foam by Soundproof