Please read the “Use Warning of PC Plastic Ear Pin” attached in the package before Use. Please pay attention to the following important tips before buying: 1> It is not recommended to use this product immediately if you have just had your ear pierced and the injured part has not healed completely. 2>The diameter of PC (Polycarbonate) ear pin is 1.05mm, slightly thicker than that of ordinary ear pin (the diameter of ordinary ear pin is 0.7mm). If you use this product for the first time, you should pay attention to whether it may cause discomfort because it is too thick. In case of any discomfort, please stop using immediately and Contact our after-sales team.We will respond within 24 hours.