13-Ft., Aluminum, Type IA Multi-Purpose Ladder, 300-Lb. Duty Rating, Quick Activating Snap Lock Hinge, One-Man Set-up, Heavy Duty Locking Pins, Multi-Positioning, Meets OSHA, CSA, & ANSI Standards, Will Work As A 3-Ft.-5-Ft., Step Ladder, 7-Ft.-11-Ft., Extension Ladder, or 1-Ft.-2-Ft., Scaffold, Extra Wide Flared Bottom For Security, Features A Telescoping Design For Maximum Versatility.