Valora (f) (plurale tantum)
(with) definite article: laCastagna describes it as "the horn rings with which the instrument, in accordance with its historical fashion, is adorned at the points of grafting between some components (e.g. the connection of the feminine bell of the drone)".
Made of ox horn.
Castagna, Ettore: La zampogna a chiave calabrese (The Calabrian zampogna with key) - 1 (Disegni: Stefano Fraschetti). In: Utriculus, Nuova serie XVII (56), II semestre 2018, p.22 (corno [horn]], (55: ox horn).
ws (linguistics [➺ Dictionaries, &c.]).