How does a turnbuckle work?

A turnbuckle is a device used to adjust tension or length in a cable, rope, or rod. It consists of a metal frame with two threaded end fittings, one left-handed and one right-handed, allowing for the tightening or loosening of the connection by rotating the center body. As the center is turned, it either pulls the two ends together or pushes them apart, effectively adjusting tension. This mechanism is commonly used in applications such as rigging, construction, and marine settings.