Laydown mounts. Top mount latch swings to allow stanchion to be removed from mount, while bottom mount swivels allowing antenna to be laid down. Comes as a pair. 

Morad Mounts:

• Made entirely in the USA.
• Precision machined and finished by hand with modern tooling.
• Dependable and rugged.
• Our products are trusted on military, law enforcement, commercial and leisure vessels around the world.