Bachi (Plectrum) for Shamisen - Water Buffalo? Tortoiseshell? Vintage Item

Thank you very much for reading my profile.
This is a shamisen bachi (plectrum). I am unsure of the material, but based on literature, it is likely made of buffalo horn. The dimensions are approximately 22cm in length, 12cm in width at the widest part of the bachi, and 2cm in width at the handle. The price sticker is still attached, and it will be sold as is. In my amateur opinion, the condition is good. Please refrain from purchasing if you are sensitive or do not understand used items. Thank you.