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.

Product brackets are made from durable material and won’t break unlike the plastic ones.

The product has durable and reliable mechanism, tested in many-fold tests.