The Billfishes Combi Crane swivel is good for a lot of fishing rigs but the one we like it best for is a dropper loop. By having a free swinging swivel attached to another swivel, it allows the bait to swim more freely as it goes around in circles. It also prevents line twist from the sinker as well as the bait.
Rest assured this swivel is strong!! The black, glare resistant finish blends in with the surroundings so there won't be a shiner surface to spook weary fish. It's also rust resistant and is sure to increase your hookup ratio.