7 chain models that can be used for necklaces, bracelets, rings and earrings.Links to practical locks for these chains:https://www.cgtrader.com/3d-print-models/jewelry/other/lobster-clawhttps://www.cgtrader.com/3d-print-models/jewelry/other/lobster-claw-lock-01https://www.cgtrader.com/3d-print-models/jewelry/other/open-box-lock-02https://www.cgtrader.com/3d-print-models/jewelry/other/open-box-lock-01