Glasser is famous for being known as the world's first fiberglass bow manufacturer, and have long been favorites among music teachers as affordable quality bows for beginning students.   The Glasser GL401h12 Half Size Fiberglass Cello Bow is made of the standard fiberglass and features a half-lined bow frog that has a metal under-slide with an imitation three-part button, genuine unbleached horsehair, and a leatherette grip.  The fiberglass bows prove to be more durable than their wooden counterpoints making them the perfect bows for beginning musicians.  Get yours today at Alto Music!