EQ Acoustics Spectrum 2 L10C Bass Trap Blue, Corner Bass Trap, Absorber core made of 100% polyester with textile cover, Highly robust, Non-allergenic and doesn't contain irritants, Odourless, Good efficiency at low frequencies, Membrane Layer Technology (foil membrane between core and cover) for better efficiency in the bass range, Wall and ceiling installation possible with Flexi system (hook-and-loop fastener for wall mounting), Fire safety standard of core material: EN13501-1:2007+A1:2009 [B - s2, d2], Fire safety standard of fabric cover: BS476 Class 1, Dimensions: 1150 x 575 x 100 mm, Colour: Blue@+*Suitable mounting hardware (not included):*@+@+, Corner Bracket Wall: Article no. #442771#, Corner Bracket Ceiling: Article no. #442772#