Speaker Cotton Insulation Bass Filler DIY 40x100cm White

• Size: 40x100cm/15.75''x39.37''(W*L); Color:White
• Absorb standing waves from the low frequency of the cabinet, make the bass clearer.
• The acoustic propagation will make space larger.
• Dedicated to speakers, flame retardant and , soft and elastic.
• Package Includes: 1 x Speaker Sound-Absorbing Cotton