VTG two-tone blue plastic multi-strand necklace

VTG two-tone blue plastic multi-strand necklace Two different colors of blue, one more turquoise. Gorgeous purple hidden box clasp Purchased in a lot at auction, so I do not know the backstory/brand/material. Sorry! This item is in pre-owned condition, please see all pics for details of wear. Smoke-free, pet-friendly home **To be eco-friendly, your item will be carefully packed/protected in clean, pre-used materials GBB_SGW_2020