Real Acorns are collected and dried to remove all the moisture. The Acorns are then given a thick 24k Gold coating and turned into beautiful Real Acorn Earrings. The earrings have fish hook style backs with a brass base metal and then are finished in gold. The fish hook backs do not contain nickel and are hypoallergenic. The dimensions are approximate as each pair of acorns are real, unique and will be slightly different.