"We’re all mad here!" Witty and merrymaking, these enamel and gold plated brass floral post earrings come in two delightful colors - and they'll jolly up any occasion! Measuring 2.5 cm, these studs feature gold plated brass post backs. Nickel free and hypoallergenic. This design is inspired by Reni Eddo-Lodge, a British journalist and author focusing on feminism and structural racism.