D'Addario Kaplan Premium Rosin with Case, Light Kaplan Premium Light Rosin is packed in an attractive case, designed for easy one-handed use. A dial at the bottom of the case allows the rosin to be turned, to avoid creating a groove, if desired. Kaplan Premium Light Rosin is packed in an attractive case, designed for easy one-handed use. A dial at the bottom of the case allows the rosin to be turned, to avoid creating a groove, if desired. Kaplan Premium Rosin is formulated using the original Kaplan recipe, which produces less dust, helping to keep the instrument cleaner. Light rosin Case designed for one-handed use Low dust Formulated using the original Kaplan recipe handed down from Ladislav Kaplan All D'Addario strings are designed, engineered and manufactured in the USA to the most stringent quality controls in the industry
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