Wedge Style Acoustic Foam Panels 2 Pack - 12in x 12in x 3 Inch Thick Tiles - Soundproofing Acoustic Studio Foam - Charcoal Color
Auralex 4 inch Studiofoam Metro 2x4 foot Acoustic Panel 6-pack - Charcoal
Four-Inch Soundproofing Acoustical Pyramid Foam | Foam Factory, Inc.
Udderly Quiet™ Pyramid Acoustic Foam 4" Charcoal (Case of 4)
12 Pack Sound Proof Foam Panels 30.48cm X 25.4cm X 1.02cm - Acoustic Panels With Self-adhesive, Flame Retardant, Stylish Hexagonal Design, Great To Reduce Noise And Eliminate Echoes (NRC>0.9)
Auralex Acoustics 4" Studiofoam Wedges CH – Thomann UK
Acoustic Foam - Professional Acoustic Tiles & Bass Traps