* Aluminium Push Up Extension Ladder Four And Six Rung Overlap. * Maximum Load 150kg. * Stile On Stile (Side Rail) Extension Easy Separated Sections. * Serrated Slip Resistant Rungs. * Pvc Feet Specially Formulated To Supply Maximum Adhesion To Floor Surface. * Made From Extra High Strength Alloy. * Available In A 4 And 6 Rung Overlap.