The Beadsmith. Jump Ring Opener. Simply Slip It On Your Finger! Great For Chain Maille Projects. Quantity: 1 Jump Ring Opener. Open and close jump rings with ease and free up a hand! With this convenient tool, using jump rings will be a snap--especially during marathon chain maille projects! Instructions For Use: Step One: While wearing the ring, grasp the side of your jump ring with flat or chain nose pliers. Step Two: Slip the bottom of the jump ring in to the slot which offers the best fit. Step Three: Gently twist the jump ring sideways with the pliers to open it. Attach the jump ring where needed, then twist it shut. Approximate Measurements: The ring size is 61/4 (16.5mm inner diameter). The slots measure approximately 14, 15, 16 and 22 gauge. Quantity: 1 Jump Ring Opener