• 3/4 inch in diameter (19mm) 
•  3mm tube and features an endless or continuous clasp. 
•  thin like a 1mm or 1.5mm and as the photos show
•  3mm tube width. 
• 14k gold and not plated. 
•  2mm tube of endless hoop style about this same diameter.
• There are hoops made of 14k yellow, rose and white gold, as well as gold-plated hoops and sterling silver hoops. 
• 14K Yellow Gold Wide Thick Continuous Endless Hoop Earrings, 
• (3mm Tube)