Most Secure Earring Back by Chrysmela Platinum Patented technology automatically fit and lock all types of earring posts Replace screw backs, La Pousset, butterfly backs

Never worry about losing an earring ever again. Chrysmela securely locks earrings to give you peace of mind. Auto adjusts to different earring posts, and protect earrings. The proven, patented technology has greater locking power and auto adjusts to different earring posts 0.6-1.1mm in diameter. Proven technology since 2008. Made in the "Switzerland of Japan" with precision, care and technology processes found in fine watches and smart-phones. Perfectly smooth, elegant finish inside and out - no snag, no harsh grip