We have just added this to our offering. We have been carrying these with lobster claw clasps for many years. Those have been our one of the best sellers.
These are the same 1.5mm bead chains except these have spring ring closure as opposed to lobster claw closure. Spring ring closures are cheaper and these have a lower price point.
We carry these in 1.2mm bead and 1.8mm bead size also. These are also available in bigger bead sizes too which we can special order for you.