1.hardware:special for tilt and turn windows,ROTO brand.
2.merits:good ventilation and high security while open

If you want to add a modern edge to your home, tilt and turn windows will instantly create a striking and sophisticated dimension.

Tilt and turn windows make the most of their glass panels to let light and air flood in, for a bright and fresh environment. Plus, keeping your windows clean and bright is always an easy, stress-free task. The innovative tilt and turn mechanism offers wide side-opening for safe and simple cleaning from the inside of your home. Open wide in the summer to bring the outdoors in and, when it’s cold and wet outside, keep your home well-ventilated using the intelligent top-fixed tilting mechanism