【925 STERLING SILVER &18K GOLD PLATED】DELECO Screw Earring Backs use Real 925 Sterling Silver Materials and 18K White Gold Plated, Nickel Free, Lead Free, Non-irritating for Sensitive Ears, Hypoallergenic. Keeping Screw Backs Duarable & Shinning Forever.【Fit 20 GAUGE Threaded Post Size 0.7mm/0.028''】The Screwbacks approx diameter 0.24inches, the diameter of the hole is 0.08mm/0.032, fit on 20 GAUGE Threaded Post Size 0.7mm/0.028'', please use the calipers check the earring post size before purchase, thank you.【2 PAIRS GIFT PACKING】2 Pairs/4pcs White Gold Color Screw Earring Backs Replacements Are Including. With DELECO Exclusive Gift Box.【SAFE&SECURE DESIGN】DELECOE Screw Earring Backs is Security, Convenience and Comfort. This Special ScrewBacks Design Allows You Use It on Your Gorgerous Diamond and Pearl Stud Earrings Safely and Enjoy All The Date and Party.【LIFETIME GUARANTEE】DELECOE Earring Findings Hassle-free Service, Lifetime Exchange or Money Back Warranty Unconditionally. Product Description DELECOE Brand DELECOE Brand was founded on two principles: Service and Quality. Aiming at Offer the Best Products and Best Experience to All Our Customers.DELECOE is Supporting by a More Than 15 Years High Quality Jewelry Manufacturer with 35 Years Top Designers Team.DELECOE All Earring Backs are Either Certified Sterling Silver! No low-grade Materials. No Sacrificing Quality for Quantity DELECOE Sterling Silver Screw Earring Backs: DELECOE 18K Gold Plated Screw Earring Backs For The Ultimate In Security, Convenience And Comfort, Just Screw It on Your Stud Earrings, Enjoy Your All Party and Date, We Got Your Back.Nickel Free, Lead Free, Non-irritating for Sensitive Ears, Hypoallergenic. Keeping Screw Backs Duarable & Shinning Forever.Perfect Choice For Most of Exquisite Earrings Studs or Diamond Stud Earrings! The ScrewBacks Fit for Threaded Post 0.032 inches. 18K Gold Plated 925 Sterling Silver Materials White Gold Color, Yellow Gold Color and Rose Gold Color Optional Packing Include: 4 Pairs/8pcs and DELECOE Gift Package. Secure Delicate Screws DELECOE Screw Backs Are Considered The Most Secure Earring Backs Because These Literally Have Threading Running Across The Earring Pole and The Back Itself is a Nut That Latches Tightly Onto The Threading System. Easy To Use Just hold the post of the earring with your index finger and thumb.Gently unscrew the back by rotating it to the right/left. It's very easy to use But very safe to your earrings. Hypoallergic Premium Silver and Gold DELECOE Only Offer real 925 Sterling Silver With 200% Thicker 18K Gold Plated Earring Backs,Which Is Skin-friendly, Can Keep You Away From Irritate Skin or Itch. Enjoy Your Date And Party Any Time. Materials 925 Sterling Silver Plated by 18K white Gold 925 Sterling Silver Plated by 18K Gold 925 Sterling Silver Plated by 18K white Gold 925 Sterling Silver Plated by 18K white Gold 925 Sterling Silver Plated by 18K white Gold 925 Sterling Silver Plated by 18K white Gold Dimension 7mm/0.28inch 7mm/0.28inch 6mm/0.24inch 6mm/0.24inch 10mm/0.38inch 10mm/0.38inch Fit Post Size 0.030 - 0.040Inches 0.030 - 0.040Inches 0.7-0.8mm(0.027-0.031inches) 0.7-0.8mm(0.027-0.031inches) 0.7-0.8mm(0.027-0.031inches) 0.7-0.8mm(0.027-0.031inches)