Independent stopping for each glass sash.
The most superior feature of Xena is that it is a hornless system. You mount your curtain as close as possible to the system and do not have to deal with constantly opening and closing the horn.
Easy to use fulcrum handle.
Xena's special patented “XWL” system automatically locks the wings when they are opened 90 degrees. It prevents the wind from closing the wing by itself.
Specially designed seals for air, dust and waterproofing.
Long-lasting Shock Absorber Bearing System: allows the wheels to walk on the rail in any situation, the weight of the wing is evenly distributed on the upper and lower rail; thus preventing the wings from shaking and making noise in windy weather.
Hornless (unguided) system.
Concealed dropper channel.