Say goodbye to doors that swing too far or fall out. The Aero-Hold™ Top Door Modification Kit-Large is our discreet, lightweight solution that gently guides your large tower’s top door to a stable horizontal position when opened. Easy to install and field-replaceable, this upgrade enhances both function and peace of mind — without altering the clean look of your display. Kit includes replacement large top display case rail, 2 replacement door rail tops, and 2 Aero-Hold cables and door Allen wrench and replacement screws.