Sister Hook - Medium Belcher Chain Choker NecklaceHandcrafted in 18K Yellow Gold, this 16" Medium Belcher Choker can be worn alone or with an added pendant on the Sister Hooks. The choker is composed of our medium belcher chain and anchored to the chain are sister hooks that fit perfectly intertwined with each other. The name Sister Hook describes a pair of hooks fitted together so that one hook makes the other hook more secure. Its often used when describing the button hooks on Victorian watch fobs.