SIZE: The round earring back is about 6x4.5mm/0.24x0.18 inch, the hole is 0.7mm/0.028 inch, 21Gauge
925 STERLING SILVER EARRING BACKS: The material of 925 sterling silver has a certain hardness, rich luster, not easy to cause skin irritation, suitable for long-term wear
1 BOX 8PCS: 8pcs silver ear nuts come with a plastic box which can be use to hold the remaining replacements to avoid not being able to find them next time
SCREW ON EARRING BACKS: Screw ear backs are the least likely of all ear back types to fall out. The earring back is rotated to install and remove, and the damage to the ear lobe is small
NOTE: Determine your screw earring pin size before purchasing, this product is suitable for threaded post size 0.7mm/0.028". If the earring backs are tarnished, wipe them with a polishing cloth to bring back their luster