Rigid collars are medical devices designed to support and immobilize the neck. They are often used to treat injuries, such as fractures or strains, and help prevent further damage during the healing process. These collars are typically made from hard plastic or foam and are secured around the neck to limit movement. In addition to injury treatment, rigid collars can also be used after surgeries involving the cervical spine. They provide stability and help maintain proper alignment while the body heals. Proper fitting and usage are essential for effectiveness and comfort during recovery.