Inoculating wire loop, metal 1.0mm (ID).  Sold as single units.  Made of nichrome wire.

An inoculation loop, also called a smear loop, inoculation wand or micro streaker, is a simple tool used mainly by microbiologists to retrieve an inoculum from a culture of microorganisms. The loop is used in the cultivation of microbes on plates by transferring inoculum for streaking.