Twisted adjustable Spanner Necklace,
Swedish Wrench.
Beautiful and detailed miniature of an adjustable wrench,
Oxidized brass in shades of gold and black.If you want it straight, not twisted, just write me.
For handy people who appreciate and love hardware tools.
Same same but made of Silver : 
https://www.galbarash.com/product-page/silver-spanner
Measurements : Length about 4.5 cm, Max Width about 1.5 cm.
My recommendation is 70 cm brass chain.