This is a beautiful necklace handmade by an artist at the Red Rocks Initiative. The "balls" are fabric wrapped around a fill, there are grey beads, and the chain is made of twisted black thread.
It has a very simplistic tie in the back - where you put the balled up end of one side of the necklace through a loop created on the other end of the necklace.
The piece measures 12" when laid out - maybe a 24"-ish length string.
Made from cloth sourced in an African market most likely in Kigali, the capital.