Do no longer use razor blades on the windshield with no care; at the same time high quality for stickers

https://nova-wiki.win/index.php/Windshield_Replacement_Safety_Standards:_An_Owner%E2%80%99s_Guide

Do not use razor blades at the windshield without care; at the same time potent for stickers, they are able to scratch if angled improperly or used with grit.