2 Strands of White Freshwater Cultured Pearls w/ Convertible Clasp. The First Strand is 10 MM, the Second Strand is 5MM. A Sterling Silver Crystal Encrusted Safety Clasp Allows it to be worn 4 Ways: A Single Strand 10 MM Necklace, A Single Strand 5 MM Necklace, A Double Strand (As Shown in Photo) or as a 35" Long Necklace.