Material: Sterling silver or gold-plated silver sterling, and UV resin.
 
Measurements: The stud's diameter is ~10 mm.
 
The earrings come in a jewellery box, and with a small polishing cloth.
 
Note that each pair will look slightly different as they are all handmade. 
 
Colours might look slightly different from the pictures, depending on the light and monitor/screen settings.