Wearable head circumference from 55cm to 61cm, You need to tell us your head circumference by email after payment, so that we can make the most suitable products
 
f you have any questions about the product, please leave me a message because of the time difference. I may not be able to reply to you immediately. I will reply to you as soon as I go online     
 
 If the product has quality problems, please contact me immediately. I will immediately arrange the return and replacement for you