Information: Fit For: 40 mm SUB watch case Size: >out diameter: 38 mm>inner diameter:30.6 mm Material: aluminum alloy Looks : black / blue and red / black and red Payment: Paypal Shipping: 1. We will arrange shipping within 48 hours after make purchase,And provide tracking NO. to you. 2. Transport time varies with different shipping methods and the place. NOTE Please !!!: 1.Delivery time depends on many factors ,if you don't receive you item more than 40 days, please contact us, we will check and solve the problem for you. 2.Our price is not including the destination customs duty fee. We only undertake the China customs problem. Feed back: 1.Look forwards to your 5 STARS positive feedback if you are satisfied with our product and service. 2.welcome to your advice and request ,we must try our best to service for you,thanks! Return: 1.We can give you a full refund within 15 days after you receive the goods If your items are returned in the original condition. Buyers need pay for the return shipping fee. Once receive the return item, we will refund you immediately. Thank you best regards !