Brass Material: the loop earrings are made of brass, flexible, slide on beads then bend as needed when adding beads to lock beads on wire.Demensions: about 25mm(1") in diameter, 0.8mm thick small items, not suitable for children under 6 years old.Suitable for Most Occasion: the loop rings can be used for earring, jewelry and DIY craft making suitable for New Year celebrations, Valentine's Day, wedding party, gathering, birthday party, etc.Warm Tips: try not to pull or push the both ends of rings too hard, in case of unwanted breaking caused by overexertion, beads in normal and bigger sizes are recommended.