They open and close like a spring and self lock, with no extra wire sticking out for your hair to tangle with.
Ear wire is standard size for a traditional piercing.
Check a ruler, these hoops are 1 1/4 inches in diameter, and approx 3/16 of an inch at the widest point in the crescent.
Shown in the photo are: the 1" hoop, 1 1/8" hoop, and this pair, 1 1/4" hoop, with a pushpin for size relevance. The vintage model is actual human size.
2 trick pony jewelry is created in a solar powered studio in the hills of northern California out of recycled metals.
this style of earring in other sizes and hammer finishes:
Do visit 2trickpony.etsy.com to see more jewelry