Features: Single foam panel features 12 * 12 pyramid-shaped surface widely applicable wall and ceiling mounting for noise-reduction. Can be used to absorb unwanted noise dampening providing moderate sound absorption no matter at home or professional studio. Made of high density foam environment friendly and retardation features make it safer to use. Great for studios recording studios control rooms home entertainment rooms home theaters office and more. Single foam panel dimension is 30 * 30 * 2.5cm/11.81 * 11.81 * 0.98in lightweight enough for wall decoration. Specifications: Color: Red / Blue / Black(optional) Pack Quantity: 12pcs / 24pcs(optional) Main Material: High density foam Single Panel Dimension: 30 * 30 * 2.5cm / 11.81 * 11.81 * 0.98in Single Panel Weight: 30g / 1.06oz Packing List: 24 * Acoustic Foams