These earrings are made of pewter and they are silver plated. 
Pewter makes the earrings thick and sturdy and they don't loose their color.
The pin is made of titanium
To preserve longevity, store your jewelry in a dry place and avoid spraying perfume or alcohol based body lotion near them.
Dimentions: 2,4 cm x 2,4 cm
You receive them in gift box!