Product: Kisaragi Cell Phone Strap 042 Star- Crystal Aurora (Gold Court)
Brand: Kisaragi
Color: Crystal Aurora
"Country of manufacture: Japan. 
 Quality control: Japan. 
 Brand: Kisaragi. 
 Design: Japan. 
 Material: crystal, brass, gold, 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.
All of the metal is gold coating. Since October 2021, the starred chains have been coated with a transparent resin to prevent discoloration. Metal = brass, other. Nylon string = gold color.
Weight: about 0.007pounds, Star crystal : about 0.4724inches.Made in Japan.

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