This is a memory wire necklace, made of frosted hematite beads, Sterling Silver spacers and frosted glass beads. Memory wire acts like a coil from a spring. The wire holds it's curve, while gently flexing to " hug" the wearers neck. This wire only is available in 1 size, and is suited for a " petite " neck. Hematite is a stone, and has been tumbled to achieve this finish. This is a necklace that is great for those with a metal allergy, or those who just don't want to bother with opening and closing a clasp !