Our LARGE Gauge STRIPED Titanium Barbell Body Jewelry is made of implant-grade, nickel-free, Titanium Alloy in mirror shine. Each barbell is your choice of three gauges, several different lengths, and has two Surgical Steel Ball ends. The OOg Barbells have 1/2 Inch Balls; the 000g Barbells have 5/8 Inch Balls; and the 1/2 Inch thick Barbells have 3/4 Inch Balls. Titanium will naturally fade over time, especially in moist areas (such as your mouth and genitals). We cannot exchange jewelry to recolor. There are many lengths and beautiful color combinations to choose from.