Designed for the Lenovo X13 Yoga Gen 4, this high-quality privacy filter from StarTech protects sensitive data from side views while ensuring excellent viewing comfort. Microlouvre technology keeps content clear when viewed from the front, while the filter blocks up to 47% of blue light to reduce eye strain. Highlights: - High clarity and blue light reduction: lets up to 75% of light through while blocking 47% blue light - Flip-over design: switch to full view in seconds for presentations - Flexible installation: attaches with clips, adhesive strips or tabs