Our earrings are crafted from stainless steel and vacuum plated in 18K gold making them WATERPROOF, TARNISH FREE and HYPOALLERGENIC They are designed to wear all day, every day and dont need to be removed for activities like swimming, showering and going to the gym Our flat screw on backs are absolute comfort and fit our motto of 24/7 wearing earrings ! No more earring backs poking your head while sleeping ! Please make sure to check that they are still tight every now and then and tighten them up if needed ! Most of our studs fit each others backs and are interchangeable. For the people that prefer the snug fit of a normal butterfly we have included a pair of silicone backs as an alternative. Material: Stainless steel plated in 18k gold Bar Thickness (Gauge): 18G/1mm Bar Length: 7mm Externally Threaded Sold in pairs Keep away from perfumes and lotions and chemicals Free shipping over R750