It has four models, or choices if you will.
25lb AR400 face (that’s the short one)
25 lb non spark strike face (that’s the short one with black plastic face)
32 lb Ar400 (that’s the big one)
32 lb non spark strike (that’s the longer one w the black plastic face)
It features AR 400 steel. AR 400 grade steel is incredibly hard, and is actually bullet resistant. No other ram has this type of metal strike face. It maintains its integrity and won't be dented or misshapen like other rams. This ensures a flat, perpendicular strike face that will deliver the kinetic energy into the target, no glancing blows.