Product Dimensions:30 x 30 x 3 cm; 1 Kilograms Colour:Black-Pyramid Country Produced In:china Size:24 Pack-30*30*3cm Item Weight:1 kg Features: 12 x 12 x 2 inches pyramid 3D designed, more contact area with sound High density (25kg/m3), upgraded flame-retardant Panels Made of polyurethane sponge, non-toxic and no health risks Easy to install and cut, shape altering won't affect its function Acoustic foam is used to remove reverberation and sound reflections, provide sound insulation industrial and domestic applications suitable for sound studios. Specifications: Material: high density new polymer rebound material Color: Black Size: approx. 12 x 12 x 2 inches Package Includes: 12/24 acoustic panels Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Note: Our acoustic foam is compression transportation, has to be placed in a ventilated place waiting for 2 days to return to normal size. Self-Adhesive designOur soundproof wall panels are designed with self adhesive, the double sided adhesive on the back can be peeled off and can be directly covered on the smooth wall, press firmly to make the wall and the adhesive tape more tightly bonded to prevent falling; Easy installation, no additional tools required, can save you time and energy. Quality MaterialThis sound insulation panel is made of quality high density new polymer rebound material,High density (25kg/m3), flame retardant, and made of non-toxic polyurethane foam, strong and not easy to tear, nonslip, safe and tasteless, and reliable for your family. Good Sound Absorption EffectDistinct pyramid 3D acoustic design, these panels increases the contact area with sound. it effectively enhances sound insulation and reduces external noise. Noise cancelling wall panels is ideal for homes or studios, helping to reduce reverberation, vibration echo, and unnecessary reflections. Improve Sound Quality & ClarityAcoustic foam panels absorb echoes and noise from surrounding areas while offering.These high dense panels can reduce unwanted echoes, reflections. Sound lisless harsh and much clearer after these panels installed on wall or ceiling. Perfect for professional studios, video blogger,rehearsal rooms, concert halls, podcasting, music. Quick ExpansionOur acoustic foam panels are compressed in vacuum packaging and to quickly return them to normal size, either leave them in a well ventilated area for approximately 24-48 hours or soak the acoustic foam in water for one minute, then wring out the water and use a hair dryer or let them air dry/sun dry. See more product details Self-Adhesive designOur soundproof wall panels are designed with self adhesive, the double sided adhesive on the back can be peeled off and can be directly covered on the smooth wall, press firmly to make the wall and the adhesive tape more tightly bonded to prevent falling; Easy installation, no additional tools required, can save you time and energy. Quality MaterialThis sound insulation panel is made of quality high density new polymer rebound material,High density (25kg/m3), flame retardant, and made of non-toxic polyurethane foam, strong and not easy to tear, nonslip, safe and tasteless, and reliable for your family. Good Sound Absorption EffectDistinct pyramid 3D acoustic design, these panels increases the contact area with sound. it effectively enhances sound insulation and reduces external noise. Noise cancelling wall panels is ideal for homes or studios, helping to reduce reverberation, vibration echo, and unnecessary reflections. Improve Sound Quality & ClarityAcoustic foam panels absorb echoes and noise from surrounding areas while offering.These high dense panels can reduce unwanted echoes, reflections. Sound lisless harsh and much clearer after these panels installed on wall or ceiling. Perfect for professional studios, video blogger,rehearsal rooms, concert halls, podcasting, music. Quick ExpansionOur acoustic foam panels are compressed in vacuum packaging and to quickly return them to normal size, either leave them in a well ventilated area for approximately 24-48 hours or soak the acoustic foam in water for one minute, then wring out the water and use a hair dryer or let them air dry/sun dry.