Lava Hanging Spiral Gauges, Swirl Gauges, Dangle Plugs, Gauge Earrings, Any Size 4G (5mm) - 1/2" (12mm). Handmade polymer clay spiral gauges from our Lava Collection!! These spiral dangle plugs are created with a mixture of yellow, orange, and red polymer clay. The pictures feature 0G (8mm) gauges. These gauges are lightweight and comfortable to wear!.