These earring backs are crafted in plastic with a Sterling Silver centre. The design features a protective clear pad, which surrounds the standard clutch style back, providing more support for heavier earrings. The push back mechanism ensures a secure, sturdy fit for smooth and comfortable adjustment. They are heavier yet easier to use and more secure than regular scrolls. This earring back measures approximately 11.45mm in diameter. The internal hole is suitable for all pins.