Protektor System Secure Earring Locking Post & Back Set

Protektor earring backs with matching posts set for the ultimate in security, convenience and comfort! After purchasing the earring back system, you need to have your local jeweler put your Protektor earrings on your earrings and you're ready to go! The positive locking clutch firmly clamps the double notch securely until it is released. Approx. weight post / back set (Each): 14K Gold: 0.17 DWT (0.26 grams), 18K Gold: 0.2 DWT (0.31 grams), Platinum: 0.3 DWT (0.47 grams), Sterling Silver: 0.148 DWT (0.23 grams). Earring Back Pad OD: 6.2 mm and 7mm, 18K palladium white gold is not alloyed with nickel, but with the hypoallergenic metal palladium. Post Thickness: .034 In, Post Length: .374 In, Made in USA.