This 36 in. Freshwater Pearl necklace features two 18 combined strands of 8.5-9.5 mm pearls. The strand features a screw in clasp which creates the look of endless beauty. This is a classic necklace that is perfect for dressing up, or wearing casually. The strands feature a screw in invisible clasp, making it easy to separate them into individual strands, or to combine them into one long strand.