The following bass viol bows are available :

nr 298, 799 mm, 70 gr, black, pl 65 cm, boxwood frog, 800 €

nr 303, 760 mm, 73 gr, white, pl 61 cm, boxwood frog, 650 €
nr 295, 770 mm, 75 gr, white, boxwood frog, 650 €

With larger hair :

nr 266, 758 mm, 71 gr, black, pl 61 cm, boxwood frog, 550 €
nr 252, 765 mm, 81 gr, black, pl 61 cm, ebony frog, 750 €

Frogs are interchangeable …