ITEM NAME: Stud Earring Components, Butterfly Included. 
CAP SIZE: 3 mm. ( 0.12")
PIN THICKNESS: 0.5 mm. ( 0.020")
METAL: 92.5 Sterling Silver
HALLMARK: 925
PLATED: Pure Silver & Anti-Tarnish
QUANTITY IN 1 PACK: 10 Pairs.