Other than their shapes, whats the difference between a round jump ring and an oval jump ring?
Oval jump rings are always cut with the opening on the long side of the oval. When a chain, another jump ring or a finding is looped through the oval jump ring without slack, gravity tends to keep the opening in the ring on the side away from the object to which it is attached. Even if the ring were to inadvertently open, this construction reduces the chance of the other object from detaching.
