Iron rings are strong, circular bands primarily used for industrial and decorative purposes. They can have different names based on their size, shape, or how they are used. A large iron ring used to lift heavy loads is called a "lifting ring." An iron ring used in chemistry experiments, particularly in distillation, is called a "retort ring." In construction, iron rings installed in walls to reinforce them against lateral forces are called "tie rings." A circular ring with spikes on top used to deter animals is called a "prickly ring." And lastly, a decorative iron ring used as a piece of jewelry is usually called a "signet ring." These synonyms for iron rings indicate the diversity of uses and applications of these versatile circular bands.