Quick Release Fasteners Applicable: quick release fasteners are ideal for front bumpers, rear bumpers and trunks, hatches, etc. that you need to remove frequently or quickly remove and reinstall. Material: Our fasteners are precision machined from billet aluminum and black anodized. Colors:red,blue,black,gray,silver,gold,orange,purple,green, colorful. installation steps: Find a good position, fix the first circle, fix the second circle in the right position, and then fix the 2 rubber rings to complete the installation. Install features: Change the normal design of the car, add a unique color to your car, make it upscale, unique and different. Product packaging content: 4*aluminum fasteners, 4*nuts, 4*screws, 4*washers, 2*O-rings, 100% new. After-sale instructions: -There are 10 colors to choose from as shown in the picture, please confirm the color you need and place an order before placing an order. -Due to manual measurement, please allow for slight size differences. -Due to different computer screens, the actual color may be slightly different from the list picture, thank you for your understanding. - We are not responsible for teaching you how to install, profeional installation is strongly recommended.