Designed for versatility, these European Style Windows bring access to fresh air with transforming operation. But, how do you cover them? Meet TrackGlide, a revolutionary window covering system for tilt turn windows, shallow windows, french doors & more! This narrow, low profile track allows window coverings to fit and glide where others simply cannot. TrackGlide adheres to the edge of the window frame–not on the glass. Duette shades operate as they glide up and down within that track. Room darkening, top down bottom up, energy efficiency, light control–the benefits and features go on and on for tricky windows that have never had a good solution before.