Paulus turned ferrule for violin… Paulus Frog ferrule for bass, nickel silver 20,2x9,8x15 mm Item No. B82300 Manufacturer Paulus bowparts Paulus Frog ferrule for cello, … Paulus Frog ferrule for bass, nickel silver 20x9,8x15 mm × Paulus Frog ferrule for bass, nickel silver 20,2x9,8x15 mm