The term 'Ballerina Balancer' refers to a dancer who performs on a barre. A barre is a horizontal bar, typically made of wood or metal, that is used as a support for ballet exercises. Ballerina Balancers use the barre to practice and perfect their technique, as well as to warm up and cool down before and after performances. The barre is also used to help dancers maintain their balance and posture while performing.