For items intended for outdoor use, Fil X ASA filament is the best option:

• Like ABS, Fil X ASA can withstand extended UV exposure without losing its strength or glossy surface.
• Fil X ASA filament comes in a range of colors to fit the requirements of your project.
• This filament is a great substitute for ABS because it is robust and stiff.
• Nonetheless, ASA is simpler to print with than ABS, even though it's still not appropriate for total beginners.