The Tandem Pulley: a jewelry tool/ object/ charm that we think you'll find endless ways to incorporate into your collection (or to start it with a bang if you're into that sort of thing). With its double vertical wheels, you can carefully weave your chain through it...you can connect chains together, simply, or in ways we've not thought about yet. It can also hang on its own, or even turn a trundle lock ring into a charm.