These chain earrings are made with black retaining rings from the hardware store, black metal chain, stainless steel jump rings, and hypoallergenic titanium ear wires. These industrial earrings are fun, edgy, and versatile. They are 1 7/8 inches (4.6 cm) long from the top of the ear wires, and the retaining rings are just over 1/2 an inch (1.3 cm) wide. All of my earrings are listed here: https://www.etsy.com/shop/BlackCatStudio98?ref=seller-platform-mcnav&search_query=earrings My shop homepage is here: https://www.etsy.com/shop/BlackCatLinks?ref=shopsection_shophome_leftnav