Charity 10% of net sales donated to Take 3 Beads: Authentic Mermaid Glass Vermeil: 18k White Gold Clasp: Infinity Clasp Chain Length: Adjustable up to 20" Base: .925 Sterling Silver The Infinity Clasp Mermaid Glass necklaces feature mesmerizing mermaid glass beads which are hand-strung on a chain crafted with a solid .925 sterling silver core and a gleaming 18k white gold vermeil. With their unique and fully adjustable Infinity Clasp, the necklaces can be worn at any length up to a maximum of 20". Take 3's mission is to clean up the world's oceans and reduce plastic pollution through education and participation. Their message is simple, take 3 pieces of rubbish when you leave the beach, waterway or anywhere! #TAKE3FORTHESEA