Glasser Advanced Composite Viola Bows combine the finest composite materials and high-tech computerized design. The shafts offer the resilience and liveliness of wood while retaining strength, stiffness, and consistency for years. Composite bows will never warp or need recambering like wood bows. Full German silver lined ebony frog. with Parisian eye. High grade white horsehair. Glasser composite viola bows are made in the U.S.A.