Material: Titanium G23Thickness: 1,6 mmDiameter: 8,0 mm; 10,0 mm; 12,0 mmBall: 4,0 mm; 5,0 mm; 6,0 mmA 1,6 mm thick gold plated titanium spiral with two balls. Both balls feature a SWAROVSKI ELEMENTS crystal in aquamarine. The big variation in sizes makes it easy to choose a favourite.