Thank you for viewing this item from among many others. TAKE-UP K18 Second Earrings Gemstone details unknown Post thickness: 0.9mm Markings: Post - K18 TAKE-UP Catch - K18 Cleaned and disinfected. Please note that the box and quality certificate are not included. From the HP: < TAKE-UP's commitment to second earrings > * Easy-to-grip top * Large, secure catch * Thick post to keep the piercing hole clean and stable * High-quality base metal (K18, Pt) that is gentle on the ears * Wide variety of designs Color: Blue系 (Blue-based)