Simple Cartilage and Nose Hoops, ranging from thick 16 Gauge, 18 Gauge (slightly thick), 20 Gauge (Standard), 22 Gauge (Thin), 24 Gauge (Super-Thin) to 26 gauge (Ultra-Thin & most delicate). In wearing, gently twist the ends in the opposite direction at the same time to open and close. Available in Sterling Silver, Gold Filled or Rose Gold Filled.