The recycled sea glass is about 11-12 mm in diameter (almost half an inch) and the whole earring dangles about 20 mm (4/5 of an inch) from the sterling silver hook.
These can be switched to hypoallergenic surgical steel hooks (for people with metal allergies) at no additional cost - just ask in the "notes to seller" when you check out, or contact me directly. I can also switch them to sterling silver posts (with dangles) for $2 more, or sterling silver ear cuffs for $7 more - please contact me for a revised listing if you want one of these options.
Click here to check out all of my recycled items:
PLEASE CLICK to see my holiday order deadlines, if you need your order delivered by December 24th: http://etsy.me/1bFhV3b