The retractable ladder is adjustable to the optional height steps. High-quality aluminum profiles, together with plastic anti-slip sockets, reliable tension belts and solid steel joints ensure a high level of safety. The ladder is designed and manufactured to EN131 standard. Minimum length: 173 cm (5 feet 8 inches) Maximum length: 342 cm (11 feet 2 inches) Maximum working load: 150 kg (330 pounds)