These Earrings are made with a combination of materials that include brass, stainless steel and resin. The heart size is approx. 1.4cm on 2cm stainless steel hoops. The earrings are finished with a coat of resin to strengthen them and to make them splash-proof but please avoid wearing them in the shower or while swimming. Please avoid prolonged exposure to direct daylight as this could cause fading of colours over time. All metal components used are nickel safe. All plated brass should only be wiped with a clean microfibre cloth to avoid damage to the plating. Please avoid using a polishing cloth/jewellery polish on them. All pieces come packaged in a black branded box.