Thank you for viewing. I am selling this because I accidentally purchased the wrong size. 15mm stainless steel metal parts, durable design. Lobster clasp hook Color is gold. Size: Total length approximately 10mm Total length approximately 12mm Total length approximately 15mm Material: Stainless steel 304 Quantity: 10 pieces 18k gold plating Product Description: Made in China Stainless steel material is rust-resistant and highly durable. The components are iron, chromium, and nickel chromium-nickel steel. It is said to be a material that is unlikely to cause allergies.