Natural Black Mongolia Horsehair French Carbon Fiber Double Bass Bow 100BFB BLACK HORSEHAIR - We use natural black Mongolian horsehair with great resilience, easier to rosin. Black horsehair is thicker than white hair, you will get louder and wild tone surprisingly. ADVANCED PERFORMANCE - The bow is made by old experienced bow-maker. It will provide you loud and wild tone and is recommended for advanced players. QUALITY CARBON FIBER - The stick is stronger and more durable than Pernambuco and other wooden bows, with well bounce and great flexibility. Approx.72.5cm including screw. Weight is around 136 grams. Easy to play. CAREFULY HANDMADE - The bow is totally made through traditional handcraft skills. Straight stick, clean work, ready to play.