["This little rosin can increase friction of bow hair and make them speak so that it is a good helper to better your performance. As a saying goes, a handy tool makes a handy man. This gadget will deserve your try!\r\n\r\nFeatures:\r\nSmall in size, stored in a mini box for ease of use and transport.\r\nApplied to bow hair to increase friction.\r\nGrip the hair and make them speak, or vibrate clearly, better performance.\r\n\r\nSpecifications:\r\nMaterial: Resin\r\nSize:48.7x31.6mm/1.92x1.24''(approx)\r\nColor:as picture shown\r\nQuantity: 1 pc\r\nNote:\r\nTransition: 1cm=10mm=0.39inch\r\nNo retail package.\r\nPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.\r\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nPackage includes:\r\n1 x Rosin(other accessories demo in the picture is not included.)"]