Made from flexible GRP fibreglass, please mind that they are flexible on twist not stretch.
Ready for installation, but its better to paint them.
Installation type: Screws and glass adhesive sealant (not included). If you fix them with rivets please be sure to use aluminium rivets (steel ones are too strong for this job) and make sure that there is no free space left between fenders inner side and your car as it might result in cracked screw/rivet indents.