This is the telescoping ladder that provides superior balance with an extra-wide stabilizing base. Unlike lesser ladders that balance weight on narrow feet, this unit has a unique bottom crosspiece that extends 4" on each side, allowing one to safely ascend and descend. Its 11 rungs are generously spaced to protect fingers and lock in place causing colored tabs to switch from red to green. Anti-slip rubberized endcaps at the top provide added stability and won’t mark or damage a wall. Made from aluminum, it supports 330 lbs. 3 1/3'-10 1/2' H x 18 1/2" W x 3 1/2" D. (23 1/2 lbs.)