Men's Blue Tungsten Ring

“Greetings from staging in El Paso, Texas with images from the book Arte Popular: The Rex May Collection of Mexican Folk Art. I’m a preloved, in excellent condition but without packaging, men’s blue tungsten ring. Using a zip cord ring sizer (see photo), I measure a size 11. I’m 8mm tall & 2.3 mm thick. Measurements in millimeters externally & internally also provided.”