they have a front to back distance of 6mm and an 8mm Andralok hinge to fasten them in place

making this an extremely versatile piece

The clear crystal measures 3mm in diameter and is claw set

Then this could be the answer you're looking for

sterling silver chunky liquid open hoop stud earrings Pierced they have a front toFeaturing a fluid form, these open hoop stud earrings look like molten silver, adding a hint of luxury to your look. The chunky swirls measure 17mm tall x 11mm deep x 3mm wide and have a rounded profile that mimics water. They are fastened easily using the pins while their accompanying butterfly backs keep them secure for all day wear. These earrings have a solid construction and therefore weigh 2. 2 grams.