A compass is a navigational instrument that shows direction relative to the Earth's magnetic poles. It consists of a magnetized needle that aligns itself with the Earth's magnetic field, pointing towards the magnetic north. Compasses are commonly used in outdoor activities like hiking and sailing, helping users find their way in unfamiliar terrain. The basic design of a compass includes a circular dial marked with cardinal directions: North, East, South, and West. Some compasses also feature additional markings for more precise navigation. They are essential tools for explorers, adventurers, and anyone needing to determine their orientation in the environment.