We love these hoops for all day and every day! They have a sleek, 3mm wide, square tube and measure 30mm in diameter, which is a handy medium size. They're super easy to fit thanks to their wide opening hinged design, but stay secure thanks to the push button release fastening at the top. This pair are made from rose gold plated sterling silver and we have other metal, style and size options available too, so why not check out the full range now?