Eagle XLA 2, 3 or 4 horse models The Eagle XLA slant load now features an aluminum exterior and aluminum roof with DuPont ImromŽ painted steel frame, 84" Stall Height, Drop-down feed windows with guards, 18" x 24" butt windows with guards, 2-way roof vents, exterior tie rings on both sides of trailer, and full-featured dressing rooms (when equipped). Aluminum exterior sheeting with steel frame provides the strength of steel framing with ease of maintenance and longevity of appearance associated with an aluminum exterior.