These versatile sound absorption boards can be flexibly fixed under ceilings, simply and straightforwardly using standard techniques. Technical and building restraints often prevent sound absorption boards being glued to ceilings and walls. These hanging systems is particularly advantageous in such cases.     Dimensions:   1200 x 500 x 50 mm       Accessories: gypsum board rawl plugs   (e.g. FID 50 from Fischer) hooks, diameter 5 mm standard steel cables with tensioners All accessories are available in most DIY markets.