The inspiration for the pattern of Soundwave® Scrunch comes from a creased paper. Scrunch is a lightweight sound absorber in the upper frequency range (500 Hz and above). These panels help reduce disturbing reflections of environmental noise such as voices, telephones etc Material: recyclable moulded polyester fibre. Colours: Anthracite, grey, and offwhite, alt upholstered in Europost. Scrunch is labeled with the Nordic Eco label (Swan). License number 331 037. When adding the option Basfill, an additional filling improve the sound absorption for frequencies below 500 Hz. Basfill consists of recycled textile fibers and polyester fibers.