Excellent low frequency sound absorbing design;The best flame retardant;Excellent acoustic properties;Environmentally friendly acoustic foam boardSound absorption, warmth, heat insulation, good elasticity, wall decoration, shockproof, moisture proof, anti-friction.Can be used in residential, recording studios and home theater schools, hosipitalEnvironmental protection, automobiles, ships, architectural decoration, household appliances, etc.;Colour: Black Material: FoamSize: 12*12*24cmPackage Contents:6 PCS * Acoustic Foam CharcoalOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.