24 Pack Pyramid Shape Soundproof Foam Sound Proof Padding Treatment Panel For Echo Bass Insulation _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Made of high quality environmentally polyurethane foam, these studio foam are durable and effective, no health risks, safe to use. _x000D_ Acoustic foam panels feature a classic design that offers excellent sound deadening and echoes absorption.This product provides strong noise reduction , where moderate deadening is desired. _x000D_ Great for spot treating sound on walls in your studio or office - For use in recording studios, control rooms, Offices home studios, home entertainment theaters, Home Office _x000D_ The high quality material studio foam can keep its sound insulation function permanently. In terms of cleaning, you just need to vacuum and dust them occasionally. _x000D_ Open the Vacuum package, put the foam panels in a ventilated place about 24-48 hours. _x000D_ _x000D_ Colour:black _x000D_ Material:Polyurethane _x000D_ Size:30x30x2.5cm _x000D_ _x000D_ Package Contents: _x000D_ 24x soundproofing foam _x000D_ _x000D_ Only the above package content, other products are not included. _x000D_ Note: Light shooting 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. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_