hoop hoop hooray! in terms of big hoops, these are some of our most popular sizes ' measuring 5cm across, or, 50mm high x 50mm wide, and 1mm deep. if you wear big hoops often, these rose gold plated hoops are a perfect alternative to your silver of gold pairs. and weighing just 2.3g, they're lightweight enough for everyday wear. these hoop earrings have a pin length of 13mm and are held in place by a sleeper fastening. these hoops are complete with a 925 sterling silver metal stamp.