When used correctly the Little Giant Classic is the strongest safest most versatile ladder in the world. The Classics patented Triple-Lock Hinge and telescoping sides make it a true multi-use ladder. In fact the Classic can be used in 16 unique configurations as an A-Frame extension staircase as a 90 degree ladder and as a trestle and plank scaffolding system. You will enjoy an unmatched feeling of safety and stability using the Little Giant Classic Ladder. Constructed of heavy wall aerospace grade aluminium its wide-flared legs give a feeling of stability you cannot normally get with any traditional A-frame or extension ladder.