The new range of AcoustiPack sound-proofing kits has been designed with customer's pockets and greater flexibility in mind! As a result, Acousti have introduced AcoustiPack EXTRA Sheet (7mm), which is a single large sheet of their latest generation 3-layer acoustic material (as found in ULTIMATE). This sheet is ideal if additional materials are required for a particular project, and the space allows for a 7mm sheet to be added. This product makes the range of acoustic material kits more flexible, and can help to save money and waste when an entire kit, such as ULTIMATE or LITE is not necessary.