1. Unique shape, simple and versatile, exquisite workmanship 2. Material health and harmless, comfortable to wear 3. Live buckle design, constellation can be taken off to wear 4. Processing technology: electroplating 5. Applicable gender: both men and women can 6. Material: alloy, leather 7. Weight: about 10 grams 8. Size: about 18cm long, the length can be 5-10cm adjustment