Neck braces come in various types, ranging from soft foam collars that offer minimal support and serve more as a reminder to limit movement, to rigid plastic braces (like the Philadelphia or Miami J collars) that provide significant immobilization for more severe injuries or post-surgical recovery. A neck brace, also known as a cervical collar, is a medical device designed to support and immobilize a person's neck. Its primary purpose is to limit movement of the head and neck to aid in healing, reduce pain, and prevent further injury, particularly after a traumatic event like a car accident, a fall, or surgery. While essential for acute injuries, the duration of wear is typically determined by a medical professional, as prolonged use can sometimes lead to muscle weakening.