These figures were made using Haradrim Infantry and Shadowfax models. Some of the rider's clothing needed trimming away to make them suitable for horse riding. Their legs also needed immersing (carefully) in hot water to make them shape to the horse.
I was short of bows so made some simple ones using cut up Uruk-Hai pikes. I gave the leader a sword from my spares box and his shield is a button. Bases are 9cm metal & cork coasters.
Large collections of these wonderful factory painted Armies of Middle Earth figures can regularly be found being auctioned off on eBay at rock bottom prices. Typical human height is about 65mm.
I use them for skirmish gaming using Games Workshops Lord of the Rings Strategy Battle Game rules - just adapted for larger scale figures.
I cut up some lengths of clear plastic 2mm rod to stop the horses drooping. I may also use these guys as opposition for my 60mm Crusaders from Supreme.