This is a pair (kit includes right hand and left hand sides)
These front of rear wheel mud shields are to stop all the mud and road salt getting around the front of the rear tub, road salt and mud settles around these and causes them to rot away, even galvanized chassis do suffer after a while, they also make cleaning your Land Rover much easier as the mud cant get onto the cross member and around the rear tub, they also cut down the road noise especially in wet conditions.
They are made from a rigid but still flexible 3mm plastic material in black, the mud shield can also be removed quite easily if you need to work in that area, they come with all bolts and fixings to fit them.