Beadalon Round Multi Jump Ring Mandrel 2 Pieces,Jewellery Making &Crafting Tool,
Badalona-Jump Ring Mandrel. A tool perfect for making jump rings on the go. Round Multi JUMP RING MANDRELS. the larger size will make jump rings in sizes 6.0mm 7.3mm 8.2mm 9.0mm and 10.0mm(approx.).