Feature 1.Material: 316L Stainless Steel (Titanium Steel) 2.Color: Black & Silver 3.Width: 28mm 4.Weight:9 g 5.Available Sizes(USA Size):7,8,9,10,11,12,13 6.Package Include :1PC Ring Note:Our ring size is according to the USA standard size,Please ,Confirm the ring size you need before placing an order. The list has a picture ,you can refer to the picture of the ring size chart to choose.Thanks