A sickle is a hand-held agricultural tool used for harvesting crops, particularly grains and grasses. It features a curved blade that is sharp on the inside edge, allowing for efficient cutting. Traditionally made from metal, sickles have been used for thousands of years in various cultures around the world. The design of the sickle allows for a swinging motion, making it easier to cut through dense vegetation. It is often associated with agriculture and farming practices, and has historical significance in many societies. The sickle is also a symbol of communism, representing the working class and agricultural laborers.