Size: about 8 cm long Ear pin material: Japanese-made brass gold-plated Other materials: brass, natural pearl, amethyst, blue and green treasure Ear clip / 925 silver pin: OK / OK (Please note the spiral or spring of the ear clip, if there is no preference, please arrange with the owner) (Please go to the exclusive purchase page for the 925 silver pin) "Precautions for jewelry maintenance" ＊ If the jewelry is not pure gold or K gold, it may fade. To prolong the life of the jewelry, please wipe it and put it in a chain bag after wearing. ＊ Do not touch the jewelry with chemicals, sweat or bathing. * Ear acupuncture products will not be returned after they are sold due to hygiene reasons. ＊ Natural stone products often have natural reactions such as black spots, cotton wool, and ice cracks. Each one is a unique stone. Perfectionists please think twice. ＊ Hand-made products are only made after placing an order. We do not accept applications for return due to subjective feelings, "inconsistent with imagination", and artificial defects. Please consider and order again after your own discretion.