DescriptionAre you looking for a professional, yet affordable string instrument rosin? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional string instrument rosin must meet your needs. It is one of the best choices for you.Features- Color: Black. - Material: Rosin. - Size: 3.80X3.80X1.40cm/1.49X1.49X0.55inch. - Providing a moderate design to make sure your violin is easier to play, which is designed to ensure a powerful yet clear sound. - This rosin is suitable for violin, can be used for personal use and professional repairing use. - Professional rosin, for beginner and practitioner, it has a wide range of applications. - The instrument has a sensitive sound when rubbed with rosin, and emits a pure, full and pleasant tone with less noise. - This is a very practical musical instrument accessory and a great gift for stringed instrument lovers.