Designed exclusively for 4ocean by Dune Jewelry & Co and only available on 4ocean.com 100% hypoallergenic .925 sterling silver 100% ethically-sourced Hawaiian ophi shells from the Dune Sandbank 100% 4ocean Plastic recovered from the Florida coast Adjusts from 16 to 20 in. with lobster clasp closure 22 mm pendant Handmade with love and sandy hands in Dune’s Boston, MA, studio Made-to-order jewelry ships directly from Dune Jewelry & Co within 3 weeks of purchase No international orders, cancellations, or refunds; coupons, discounts, and other promotions do not apply