_x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D_width:12mm size 7 (Label 17)=Inside diameter 17mm= circumference 53.3mmsize 8 (Label 18)=Inside diameter 18mm= circumference 56.5mmsize 9 (Label 19)=Inside diameter 19mm= circumference 59.6mmsize 10 (Label 20)=Inside diameter 20mm= circumference 62.8mmsize 11(Label 21)=Inside diameter 21mm= circumference 65.9mmsize 12(Label 22)=Inside diameter 22mm= circumference 69mmProducts:All of my product are 100% same as our photos, what you see is what you get Our item is authentic in order to save your money,you may use the low price to buy the high quality product .This causes your life to fill the fashion . This is our targets .Return Policy:If thereare any problem of products, please contact us firstly and we can negotiate on it. We will try our best to solve it satisfactorily. If you really dont want it, please send them back to me within 7 days,but the goods must be good not used and not man-made damages,and you should bear all theshipping cost.After we received the goods ,we`ll give you a full refund except the shipping cost . Thanks for your kind understanding.Customer Service:We offer 7/24 service, please feel free to contact me if you have any question on my products. Your inquiry will be replied within 24 hours.Feedback:If you are satisfied with our goods,please give us a positive feedback,thanksWe are improving our goods and service day by day.Any request please contact me directly,it is my pleasure to give you the best serves. Your satisfaction,our pursuit_x000D__x000D__x000D__x000D__x000D__x000D__x000D__x000D_