Thank you for viewing. This is a biwa plectrum (bachi) handcrafted by a wood craftsman, one by one. Weight: approximately 118g. Made using Japanese boxwood from Ibusuki, Kagoshima Prefecture. (Please consider the dimensions and weight of the plectrum as approximate, as they are measured by an amateur.) This plectrum has "iri-kawa" (ingrown bark) due to the wood's growth process, resulting in a whitish circular pattern on both sides of the plectrum (see photo 4). Please check the profile. If you have any questions, please contact me in the comments. (Please note that it may take some time to respond.)