Focus0302A 24pack1-inch Sound Absorbing Foam 3" X 12" bass traps

3" X 12" bass traps corner installed at the ceilings and corners of a room will ensure the balance of the waveform in the low-frequency part of the frequency response curve

sound absorption and reverberation reduction

has to be placed in a ventilated place waiting for 2 days to return to normal size

The wedge surface of -6 grooves increases the contact area with sound waves

non-toxic materials ensure no harm to your health during daily use

Focus0302A 24pack1-inch Sound Absorbing Foam 3" X 12" bass trapsWithout Damaging Your Wall: Our acoustic foam panles are equipped with 60 PCS double side adhesive tape which can be easily washed. It is easily removable and will not damage your walls or surfaces, tear off without leaving any traces. Noise Reduction: Overall Noise Reduction Coefficient (NRC): 0. 65. The wedge surface of 6 grooves increases the contact area with sound waves, and the sound absorption effect is better than other shapes of surfaces.