Description de chez Amazon USA : - Pirastro Obligato/Violino Rosin is well suited for violin, viola and cello. - Specifically formulated to compliment Obligato and Violino strings. - This rosin provides a good grip and an excellent tone. - This popular rosin is produced by Pirastro, the biggest seller of strings in the world. - Pirastro has been developing and producing rosins in Offenbach, Germany for over 200 years.