A sling is a simple medical device used to support and immobilize the arm after a clavicle fracture. It consists of a cloth or padded strap that goes around the neck and holds the forearm across the chest, helping reduce movement at the shoulder and collarbone so the bone can heal.

By keeping the arm in a comfortable, stable position, a sling helps decrease pain, prevent further injury, and allow the fracture to mend naturally. It is typically worn for 2–6 weeks, depending on the severity of the break and the patient’s healing progress, with gradual return to movement guided by a doctor or physical therapist.