Universal EZback Earring Backs Soft Clear Silicone and Sterling Silver (Small - 1 Pair) Comfortable; Fits Most Earrings; Extremely Strong and Secure Grip; Retains the Original Gripping Strength Nickel Free; Hypoallergenic; High Grade Soft Silicone; Non Latex; Should not Cause Skin Irritation Great for Diamond Stud Earrings Authentic Universal EZback Patented Product; Superior Quality Compared to Copies; Comes in branded Massete packaging Diameter 6.36 millimeters or 0.25 inches; Height 4 millimeters or 0.16 inches