Wash your hands.
Hold the sling with the strap and pouch open.
Slide the injured arm into the pouch.
Position the elbow fully inside the sling.
Keep the wrist and hand supported and slightly higher than the elbow.
Bring the strap around the neck.
Adjust the strap so the forearm is level and comfortable.
Fasten or secure the strap.
Make sure the sling is snug but not tight.
Check that fingers are warm, pink, and not numb.
Recheck the fit if pain increases or the sling feels loose.