Bobelock Double Bass Bow (German Style) Case - Vinyl Exterior B8-G2BB Black/Blue by Bobelock. $85.00. Bobelock bow cases fit violin, viola, cello and bass bows comfortably. Velour interior only, surrounded by a sturdy plywood shell. This case fits German bass bows comfortably and is designed to keep them from sliding around inside; very important for those delicate tips! Sturdy clasps keep the case closed even if dropped.