Material: Wood and Surgical Steel Ear Wires Nickel, lead and cadmium free, great for sensitive ears! Size: Approximately 2x1.3cm without ear wire, 4cm long with. Care and other info: Remove before showering, swimming, and sleeping. Due to natural differences in wood and hand painting you will see slight variations from one piece to another however this only increases their originality and sentiment. Colours may appear slightly different from one computer screen/device to another.