Description Express your individuality with Lovisa Body Jewellery! This flat back pack has been made with surgical steel, so it's gentle on skin. The earrings feature smooth backings which make them more comfortable to wear in cartilage piercings and ear stacks. Layer them together for maximum impact! The gauge measures 16G/1.2mm. Express your individuality with Lovisa Body Jewellery! This flat back pack has been made with surgical steel, so it's gentle on skin. The earrings feature smooth backings which make them more comfortable to wear in cartilage piercings and ear stacks. Layer them together for maximum impact! The gauge measures 16G/1.2mm.