Provides complete visibility for safer driving by increasing the driver's field of view and reducing blind spots with a reliable rear view mirror. Suction cup delivers strong, reliable hold that prevents mirror shake or detachment, even on uneven surfaces during travel. Easy, tool installation on any smooth and clean windscreen within 1 minute; once attached it grips firmly and won't move; removal leaves no marks. Designed as a driving instructor mirror to give drivers extra view and further minimize blind spots for safer lessons and tests. Key features and performance Function: adds an extra viewing angle on the windshield to improve situational awareness while driving. Compatibility: attaches to any smooth, clean windscreen; suitable for most vehicle interiors where a secondary rear view is beneficial. Installation: quick, tool mounting in under 1 minute; secure grip that resists movement during normal driving. Feel and impact: nonintrusive aid that enhances visibility without altering the primary rear view. Use scenarios Driving lessons or driving tests: provides instructors with an enhanced forward view to monitor student performance and road conditions. Daily driving: useful when changing lanes, merging, or navigating complex traffic to reduce blind spots and improve safety. Shared cars or training vehicles: enables an additional, nonpermanent viewing angle for instructors or codrivers without permanent modifications.