The equipment required to manage an infant or child's airway is, of course, smaller than that used to manage an adult's. Other, less obvious differences are dictated by the different physiology and anatomy of the pediatric patient. This chapter examines the equipment the pediatric anesthesiologist uses to secure a child's airway in both routine and difficult circumstances and, where applicable, attempts to explain why a particular piece of equipment evolved as it did. In anesthesia, as in other things, form usually follows function.