This is a string of approximately one hundred tiny ring beads. The modern string they were strung together on is now broken.
From Egypt, Sheikh Farag SF 187. 1913: excavated by the Harvard University–Boston Museum of Fine Arts Expedition; assigned to the MFA in the division of finds by the government of Egypt. Findspot Information: From Sheikh Farag. S.F.187
Harvard University—Boston Museum of Fine Arts Expedition