Describe
<br />Specification:
<br />Total Size: 30 * 30 * 5cm (2" x 12" x 12")
<br />Material: Polyurethane foam
<br />Color: Purple BLACK
<br />Package included：
<br />24pcs Purple/BLACK
<br />Feature:
<br />Using polyurethane foam material.
<br />After special treatment device side triangular groove shape formed by the complex process of foaming silencer, sound-absorbing, sound insulation, shock absorption sponge materials.
<br />Its interior is full of small voids and semi-open pore structure can absorb a lot of energy incident on the acoustic attenuation of sound waves play a role, reducing chamber reflected sound interference and response, improve the purity of sound; noise sound-absorbing material is a high-performance product.