A classic European-style window is a good combination of functionality and aesthetics. Tilt the top of sash and open inward at an angle to use it for ventilation purposes else swing the complete sash inward and use it like your standard window. The operation is made easy with impeccable design and engineering. AIS Wooden Frames are made of high performing Accoya Wood which exudes a natural finish and is aesthetically pleasing. The physical properties of wood such as color, texture and thermal resistivity makes it the best product for framing.