The best way to avoid food allergy emergencies is through awareness. Allerbling is a visual educational tool and a conversation piece that has the potential to save children's lives by raising awareness of a child?s food allergies. These bright, stretchy bracelets are a great way to alert others about your child's food allergies. To insert charms, simply stretch the wristband a little with one hand, and elongate a hole. Then squeeze the charm backing and insert it partially into the hole and pull the backing through the other side - a bit like threading a needle. Do not use a sharp object to elongate the hole. Continue until you have installed all of the charms your child needs.