This 16.5" long necklace is made of baroque multi overtone silver Tahitian pearls and a medley of seashells (many of which I found on the beach myself). The pearls range in size 9-12.5mm. The clasp is a gold plated bean clasp, email us at the time of purchase if you'd prefer a different clasp, or a different length. ID#KDN36483/KDJ4000/3/04/24