Size：about 28mm.

Random delivery, there may be a slight difference in color,Because it is naturally formed,please prevail in kind.We have our own processing factory, there is China's largest wholesale market, can give you the best quality. If you need more, we can give you a good discount! Dear friend, whatever question you encounter after purchase, please contact me, please believe I will give you the most satisfactory solution, if you have a problem, please contact me, don't hesitate!Dear buyers, we appreciate your business, Our goal is to make sure you are a happy buyer and pleasant shopping with us. Please feel free to contact us in time if you have any questions under any circumstances. we will try our best to give you a satisfied solution within 24 hours.