Eastman Andreas Eastman One Star BA90 Pernambuco Wood Viola BowEastman bows are some of the finest bows in the industry for your orchestral string instruments. All Eastman bows are designed to channel your expression with the most subtle nuances and full range of color. Each bow is carefully balance at an optimal weight and made with the finest of materials. All Eastman bows have ebony frogs, fully lined slides, and unbleached, genuine white horse hair. Andreas Eastman One Star BA90 bows are entirely hand made