11.Color can be selected by yourself; splicing is simple; utility knife portable cutting; create your own style. 22.Multiple functions: Sound absorption; noise reduction; sound quality improvement; acoustic diffusion; decoration. 33.Good for recording studios, vocal booths, home theaters 44.Light weight soundproof foam easy can be applied on ceilings. Soft / flexible - great for sound proof . 55.Our foam is very easy to clean, just use a hand vacuum on a low setting to remove any dust accumulation. Special pyramid shape: Not only beautiful; can effectively absorb high school low frequency sound; remove echo reverberation; make the sound become more energetic.ideal for control rooms; mixing rooms; listening rooms; home theaters. Features: 1.Color can be selected by yourself; splicing is simple; utility knife portable cutting; create your own style. 2.Multiple functions: Sound absorption; noise reduction; sound quality improvement; acoustic diffusion; decoration. 3.Good for recording studios, vocal booths, home theaters 4.Light weight soundproof foam easy can be applied on ceilings. Soft / flexible - great for sound proof . 5.Our foam is very easy to clean, just use a hand vacuum on a low setting to remove any dust accumulation. 6.Can help increase sound clarity in a room or space. Great use for media content. 7.High density, fireproof, non-flammable. Specification: Condition: 100% brand new Material:Polyurethane Weight: Approx.70g Size:(approx) 50*50*5cm/19.6*19.6*1.96inch Color:Yellow,red,black(optional) Package include: 6*soundproof foam Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding.