D'Addario Natural Rosin, Light for Violin, Viola and Cello Catalog ID: RNNADADDL All-natural ingredients combined in a very special process makes this rosin perfect for either horsehair or synthetic bow hair. An easy-grip plastic tray holds the rosin, making it easy to apply. D?Addario Natural Rosin produces less dust to keep the instrument cleaner. For violin, viola and cello. In Stock List Price: $6.00 $3.50 Wish List Buy Continue Shopping