- Easy installation required pre drilling holes in the correct positions for doors and windows and aligning the screws with the screw holes to attach the hardware to the door and window fronts - Suitable for casement windows, inward opening windows, hopper windows, skylights and similar installations in homes, offices, schools and other buildings - Lightweight yet robust construction that is durable, impact resistant, heat resistant, corrosion resistant and not easy to rust - User friendly design with lockable window handles for easy and secure closing and reopening of the window - Practical and reliable solution for enhancing window security and operation without adding complexity - Use scenarios - Home improvement projects to upgrade window hardware in apartments or houses - Office refurbishments to install lockable handles on work area windows - School facility updates to retrofit classrooms and common areas with secure, easy to use windows