Remove Before Flight Tags

So what are "Remove Before Flight" tags?

Remove before flight tags are just markers on the components that need to be removed. Sometimes you may see a pilot walking around, inspecting the aircraft before the take-off and removing these warnings.

"Remove before flight" is a safety warning often seen on removable aircraft and spacecraft components, typically in the form of a red ribbon, to indicate that a device, such as a protective cover or a pin to prevent the movement of mechanical parts, is only used when the aircraft is on the ground parked or possibly taxiing.