925 Sterling Silver: Round ball earring posts are made of durable 925 sterling silver material with 18k gold plated not easy to rust and fade especially suitable for sensitive skin. Earrings post stud will fit extremely comfortably on your ears and will shine beautifully every day Package Includes: You will get 30 Sets 925 sterling silver earring posts with loop (s925 stamp) and 30pcs earring backs. earring making kit enough for your spare and replacement keep a long time use to replace your lost or torn one also share them with your friends and family Hanging Loop Desig: These ball earring studs come with a hanging loop design which can be conveniently attached with jump rings beads dangle pendants or tassel chain to make different drop dangle earrings. They are the good replacement for your lost earring back and earring post Size: Earring post with loop stud earring findings have 3 sizes 10pcs 3mm in diameter 17mm long; 10pcs 4mm in diameter 15mm long; 10pcs 5mm in diameter 14.5mm long; Ear nuts 6mm wide 4.5mm long 3mm thick hole: 1mm Ball Stud Earrings: These earring studs is in ball shape tiny and cute in 18K gold plated shinny and can be keep bright for a long time it has unique loop you can add various charms and beads to make dangles add more beauty of elegance for your wearing