Free Worldwide Shipping! Lock system is screwback All the components including bar & the screw are made of 14k gold Nickel free & antiallergic Available in 3 gold options & 2 different bar lenghts Customisation is available. Please get in touch for further questions Item is sold in single pieces Dainty 14K Solid Gold Delicate North Star Figure Screwback Ear Piercing/Stud