Read before buying! About Sevice If you have any quality issues, please contact us first,we'll respond within 12hrs and solve the problem with your most satisfied way. About the size measurement The paper measurement is intended for reference only.Please Allow 1-2cm error About Meterial of Product: It uses the environmental protection material quality. All the items undergoes numerous checks before it on sale! All the items pasted the SGS test! Any questions, please post it in "Customer Questions & Answers ",you'll get more help from us or other customers who bought this Jewelry Sets.