Venetian blinds with aluminum slats 35 mm and 50 mm width are more and more popular on Latvian market. Thanks to simple and secure hardware applied in system “Standard”, there is a possibility to produce blinds of extra large sizes – up to 12 m2 in one product. This is an excellent alternative to vertical blinds. For this system there could be applied ladder tapes for better shading effect and as decorative element. Manual operating (lifting and rotation of the slats) can be arranged by cords or by elegantly folding crank.