Violin unidirectional carbon bow… Violin unidirectional carbon bow "UNI S" silver Item No. UNI S Violin carbon bow "Viennabow" "Uni S" Violin bow made of unidirectinal carbon - silver fittings, ebony frog with Parisian eye, three part buttonwith abalone inlays, stamped "Uni S" × Violin unidirectional carbon bow "UNI S" silver