Measurements chain: 17,5 cm, no extender
Available in gold & silver 
 
Material chain: Surgical Steel, 18k gold plated, special sealing, no-discoloration, waterproof & hypoallergenic.
 
Jewelry care: Do not wear the jewelry in bath, in the sea or a swimming pool. (Chlorine can affect the jewelry)
Avoid contact with cleaning agents, perfume, lotions etc.