4pcs 56MM ( 51MM ID) Skull Logo Emblem Car Wheel Center Caps Styling Accessories for Rim Wheels Hub Hubcaps Cover Badge Replace _x000D_ Product Name:SkullEmblem CarWheelCenter Cap Styling Accessories (Outer Diameter 56MM) _x000D_ Product Size:Outer diameter 56MM/card foot protrusion 53MM/inner diameter 51MM/total height 15MM. _x000D_ Product Color:Black Silver,Black Red; _x000D_ _x000D_ _x000D_ InstallationMethod: _x000D_ 1.Use tools to remove the original car wheel center caps; _x000D_ 2.Take out the purchasedcar wheel center caps, align it with the buckle, and press it slightly with force. _x000D_ _x000D_ The above dimensions are measured manually and may have an error of 0.1-0.5MM. _x000D_ _x000D_ _x000D_ HOW TO MEASURE THE WHEEL CENTER CAPS _x000D_ _x000D_ Before you place the order, please check the tips of how to measure the right size of hub caps you want. _x000D_ It's better to use the Vernier to measure the sizes. _x000D_ _x000D_ 1. Measure the wheel center hole _x000D_ _x000D_ Please check the following bottom photos. _x000D_ _x000D_ There are total two sizes you have to measure. First is the Outer Diameter(O.D), second is the Inner Diameter(I.D). _x000D_ _x000D_ 2.Measure the old wheel center caps you have _x000D_ _x000D_ Please check the following bottom photos of the right method to measure the sizes of hub caps. _x000D_ _x000D_ 3.If you still do not know how to measure the size, you can ask the supplier of the wheel hub caps of the sizes, including Outer Diameter, Inner Diameter and Length of Clips. _x000D_ _x000D_ _x000D_ Note:Please check these are the correct size before purchasing. _x000D_ _x000D_ _x000D_ The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. _x000D_ _x000D_ Included: Set of 4. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_