"The bow frog is the end part of a stringed musical instrument´s bow that encloses the mechanism responsible for tightening and holding the bow hair ribbon. Most of the bow frogs used in today´s classical bows are made of ebony; some synthetic bows have frogs made with materials that imitate ebony, while Baroque bows use frogs made with various woods." - (en.wikipedia.org 23.06.2022)
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