This lid organizer installs with screws, which are provided. The Lid Organizer attaches to the interior lid of the case(if you have lid foam, this replace that). The Lid Organizer has 5 mesh pockets for easy viewing with heavy-duty nylon zippers to provide storage of cables, power supplies, tools etc. This lid organizer comes with more mesh pockets, better / stronger mesh material, and larger pull tabs. (If your case does not have screw holes, please request velcro).