Format - 4:3 ,blank thickness - 0.3 mm ,Viewing degree - 120° ,gain factor - 1 times ,Tubus length - 186.6cm ,Width - 156cm ,Height - 117cm ,Dimensions ,Width - 186.6 cm ,Depth - 8.9 cm, Mount permanently to wall or ceiling ,- Mount on an aluminium profile ,- Easy to unwind or rewind to the desired position