Product: Kisaragi Cell Phone Strap 043 Star- Crystal Aurora
Brand: Kisaragi
Color: Crystal Aurora
"Country of manufacture: Japan. 
 Quality control: Japan. 
 Brand: Kisaragi. 
 Design: Japan. 
 Material: crystal, brass, other."
Star crystal (aurora) is a mysterious crystal that looks various colors depending on the viewing angle.
Since the upper one is a hook (clasp), you can remove it and use it as a charm. For example, (Fastener in general, Back charm, Mobile game, Wallet, Pen holder, Digital camera case) etc.
Since December 2021, starred chains have been coated with a clear resin to prevent discoloration. Metal = brass, other.
Weight: about 0.007pounds, Star crystal : about 0.4724inches.Made in Japan.

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