I haven't used it much since I bought it. Please purchase only if you understand that this is a used item. Slide ball (move) functionality confirmed. Contents: Chain (pendant not included!) Length: Up to 70cm Material: K10 A necklace with a changing nuance thanks to the freely moving slide ball. From the trendy Y-shape style to a basic long type, or combine it with your favorite charms. This is a K10 necklace that combines a design chain and a simple chain. The design Y-shaped necklace creates a clean vertical line. You can enjoy free coordination to match your fashion. This is the most basic and simple design, using only a K10 chain. It's a convenient item that you didn't have before, so this versatile piece is sure to be useful in various situations. Material: K10 (10 karat gold) Color: Gold Decoration: None (chain necklace)