A split ring is similar to a jump ring, but instead of either being soldered closed or a slit being left in the ring, they continue around, sort of like a spring. These nickel plated split rings have a steel core. Best in quality, they're great to use for making or replacing key chain rings, key fobs and lanyards. They can also be used to add accessories to your luggage bags, backpacks, purses or anything else you'd like to accessorize. Split rings can also be added to different tools such as flashlights, portable power tools and other handheld electronic gear for ease of organization and hanging. They are definitely a mulit-purpose product with many uses.