Hoops Earrings in 925% Silver, black oxidation. Closure: pin with butterfly / Average weight: gr. 3.60. Our jewels are handmade and with natural materials, this makes each piece absolutely unique. Each piece will in fact have small variations from the others that will make it absolutely exclusive. The 925 silver used is nickel-free , which makes our earrings almost 100% hypoallergenic.