Maintenance Stairs for narrow or wide body aircraft are available in fixed or hydraulically adjustable heights manufactured from aluminum or steel. Designed for indoor or outdoor use, features include non-slip reinforced grip strut stairs and platforms, solid natural rubber wheels, HD casters and a self-locking tow bar. The stairs are engineered to withstand wind gusts over 100 MPH. Wilcox Maintenance Stairs are designed to perform and to last.