1. Unique modeling, personalized and versatile 2. Exquisite workmanship, healthy and harmless material 3. Smooth grinding, comfortable to wear, does not hurt the skin 4. Not easy to lose color / deformation, durable 5. Material: stainless steel, synthetic zirconia 6. Processing: electroplating 7. Chain length: about 42+5.5cm 8. Weight: about 5g