From their announcement:
The armored Sturmwolf Warbeast is a mutant terror larger than a horse and stronger than a bull. This model also features GothTech armored rider legs. The Warbeast is a multimedia casting with a resin body and a pewter tail & rider legs - sold unpainted. The unit five pack contains five sets of legs and a total of five random version #1 and #2 bodies and five random version #1 & #2 tails. Sculpted by Clint Staples.
Also available is a single of version # 2 body.