1. Material: titanium steel
2. Treatment process: electroplating
3. Mirror polished, reflecting dazzling light
4. Anti-oxidation and anti-corrosion
5. Not easy to be allergic, not easy to fade
6. Weight: about 3.4 grams for a single row; about 6 grams for a double row
7. Dimensions: single row width 4 mm; double row 8 mm
