12″x12″x2″ Acoustic Foam Panels, Soundproof, Fire Resistant, High Density, Black
Features: 1. High Density-25kg/m3, stronger absorption of flutter echoes, standing waves and reverberation.Perfectly good for acoustic studios. Grade B1 fire-proof performance. 3.Eco-friendly: made of non-toxic polyurethane sponge, no health risks.