Lord of the Rings - Armies of the Middle-Earth Warriors and Battle Beasts Scale Figures.
Eomer on horseback, I beleive it's 1/24 Scale.
Made by Play Along in 2003 and long out of production.
The battle for Middle-Earth comes to life with Art Asylum's Armies of Middle-Earth Collection, featuring over 60 figures and six environments from The Lord of the Rings motion picture trilogy. Amass your own legions of warriors and recreate epic scenes, down to the last authentic detail. Create battles so real that you may just feel the ground shake.
At a mere 3-inch scale, Art Asylum's meticulously sculpted warriors feature up to 6 points of articulation and come with removable accessories and bases. Figures are small enough scale for collectors to create comprehensive displays, but large enough to display incredible detail. This set includes Eomer on Horseback. Collect them all.