Sold as a pair and built to be heavy!
The inside diameter of the hoop is about 1 inch or 25mm. The outside length is a little over 1.5" or 38mm.
They weight about 20 grams each and can be worn in any lobe 3mm or larger.
They can be made in 8 Gauge/ 3mm thick wire or 6 Gauge/4mm thick wire (photographed)