Touch Lock for UPVC in Pollachi, Tamilnadu, India window mechanism is incorporated into the window sash for a sleek, low-profile design. It works smoothly. One smooth, single motion opens or closes the window, and locks it. There is no pinching, squeezing or twisting. When the handle is down, the window is locked. When the handle is up, the window is unlocked. The lock assembly is made from die-cast zinc so it is not only tough, it is built to last.