Features:30 * 30cm/ 12 * 12in acoustic foams, pack of 12pcs.Ideal for controlling the reflections of sound within a small room.Let you have more enjoyable sound by effectively controlling unwanted reverb and echo.Suitable for recording studios, control rooms, offices, vocal booth, etc.Note: The acoustic foam may be a little deformed caused by compression packaging. Please place it for one day before usage.Specifications:Color: GrayMaterial: FoamThickness: 1-1.5cm / 0.4-0.6inItem Size: 30 * 30cm / 12 * 12in (single)Item Weight: 132g / 4.7oz (12pcs)Package List: I303112 * Acoustic FoamsThank you for choosing us, if you have any problems, pls contact us first, we will try our best to solve it, pls do not give us any negative or neutral feedback, thanks.