EQ Acoustics Spectrum 2 L5 Tile Black, Acoustic Absorber, Absorber core made of 100% polyester with textile cover, Highly robust, Non-allergenic and contains no irritants, Odourless, Most efficient in the mid and high frequency 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 50 mm, Colour: Black, Package quantity: 2 Pieces@+*Suitable fastening materials (not included):*@+@+, Flexi Blocks: Article no. #442768#, Flexi clips: Article no. #442769#, Flexi Hooks: Article no. #442770#, Corner Bracket Wall: Article no. #442771#, Corner Bracket Ceiling: Article no. #442772#