Our honeycomb blinds are made up from a cellular construction of varying sizes from 10 mm and 20 mm single cells to the larger double cells. Honeycomb blinds are designed to trap a pocket of air within their cells thereby creating an insulation barrier between the hot or cold glass of your windows, depending on which time of year, and the living space inside. These blinds have been independently tested in the harsh Australian climate and proven to save as much is 32% on heating costs using the 20 mm single blockout cells.