Amazon.com: HEWEIYHY 4 Pack Acoustic Foam Panels, 48 x 24 x 2" Sound Absorbing Panels High Density Studio Wedge Tiles Fire Resistant Acoustic Panels for Home,Office, Recording Room, Studio (Black) … : Musical Instruments
Sonex Classic Foam (Color: Light Grey)
Pyramid Acoustic Foam Panels for soundproofing and acoustic treatment | Pyramid Studio Acoustic Foam, 1'x1', Black (Set of 9) – MMT Acoustix
Amazon.com: Acoustimac Sound Absorbing Acoustic Panel DMD 4' x 2' x 2" WHITE : Musical Instruments
Acoustimac Sound Absorbing Acoustic Panel DMD 4' x 2' x 2" Khaki 2
Auralex - Sonomatt Acoustic Foam Panels 2 x 24 x 48-Inches - Charcoal - 12 Pack