EQ Acoustics S10C Bass Trap Black, Acoustic Elements, Material: Bass trap made of 100% polyester, Very robust, Non-irritant or allergenic, Odourless, Good efficiency in the low-frequency range, Hidden low-frequency membrane (also limits HF absorption), Wall corner mounting possible with Flexi system (Hook-and-loop fastener compatible for wall mounting), Fire protection standard core material: EN13501-1:2007+A1:2009 [B - s1, d0], Dimensions: 575 x 575 x 50 mm, Weight per panel: 1.9 kg, Quantity: 2 pieces, Colour: Black, Incl. screwless wall fixings