These guards are the best I have found and are laser cut aluminum. They can be installed with 1 of 3 fasteners: inserts, clamps, or self tapping screws. I chose clamps as no holes have to be drilled in the tubes. They are light weight, but they are strong. They do an excellent job of covering both sides on the wheel wells and the drivers side also protects the plastic brake fluid reservoir from any damage.
They can be purchased in black and colors to match your RZR.
There is also a good installation video on YouTube.