0.925 Sterling Silver Medium Spiral Earrings hang down about 1-1/2 inches.  They are a little thicker than piercing stud earrings, at about 1.2 mm in diameter, which is in between 17 and 16 gauge.  Rather than mass manufactured, these super cool spiral earrings were handmade in Indonesia, so some variation may be present.

• Approximate dimensions from top to bottom: 1.5"
• Between 17 gauge and 16 gauge may be a little tight to insert into "normal" un-stretched piercings, but does not pose a problem for most people.