In manufacture, special fabrics are used, which feature altered transparent and non-transparent stripes. Such fabrics are used in two layers, and when a transparent stripe of one layer matches a non-transparent stripe of another layer – it will get darker inside, when both transparent stripes match – it will get lighter inside.

The cassette shape features rounded forms, the side covers close product fixings on window frame, and look as the entire whole with the product body.

The product cassette is tiny, and its height is 35 mm.

The fabric is tightly rolled and hidden inside the cassette. Due to the vertical guides, fabric sticks close to the glass when room is aired.