HIGH QUALITY MATERIAL- These ball post stud earrings are made of 304 stainless steel, they are no tarnished, no fade, no allergic. And resistance to corrosion in comparison to other metal alloy, poses no health risk, need low maintenance. ENOUGH QUALITY- There are 150pcs/75pairs stainless steel ball post stud earrings which measure about 12mm long in total, small and delicate earrings coming with large quantity are enough for your jewelry making needs. EASY TO USE- There is a loop measuring about 2mm in diameter on each ball post which allows you to easily add beaded dangles or drops to it to make simple, yet elegant drop earrings. EARRING BACKS INCLUDED- Earring studs come with butterfly earring backs, it can match ear studs well, convenient for you earring making. When your earring backs are lost, they can also be a perfect substitute. GOOD CHOICE- Turn your favorite charms or beads into earrings easily with these ball posts earring findings which will give your earrings the ultimate touch of beauty, elegance and quality.