Do I get one or two?
Two — sold as a pair, one for each side, preassembled with the flaps already fitted.
How big is the flap?
18 inches long by 7 inches wide, which is sized to fully cover the rear shock.
Will it tear off at speed?
The rubber is thick and nylon-reinforced rather than plain rubber, and the bracket is laser-cut, CNC bent and MIG welded steel rather than plastic.
Does installing it require drilling?
No. The bracket bolts into the upper frame using the supplied flag nuts and hardware.
Is this the same as the shock skid?
No, they cover different threats. See the section above — most people run both.