This dainty small Hamsa pendant is made of elegant violet Opal . The size is 10mm by 8mm; on the sides there is a hole where the chain is slides through. The chain is a fine delicate 925 sterling silver box chain. Size of necklace is 18 inch. Upon request I can arrange it in 16" or 20" at no extra charge, just mention it at the checkout. The Hamsa Hand (Arabic) or hamesh hand (Hebrew) is an old and still popular apotropaic amulet for magical protection from the evil eye. The words hamsa and hamesh mean "five" and refer to the digits on the hand. Referred also as hand of Fatima and hand of Miriam. For centuries the Hamsa has been used as a symbol of Good luck and shields its owner from the curse of the evil eye. The Hamsa's positive energy draws happiness, riches and health.