Advanced auto-locking technology locks securely and safely into multiple positionsEasily converts between Telescopic Ladder, Extension Ladder and Stairway LadderSpring loaded J locks for quick and easy working height adjustmentSmooth glide wheels to aid transportation Product features SKU JEFLADMPAS06 Material Aluminium Max. Load 150kg Duty Rating 115kg Extended Open Height 3040mm Closed Height 1830mm Fully Extended Height 6480mm Spacing Between Treads 280mm Certified To EN131 Class Gross Weight 23 kgsAnti-slip feet and rung threadsLightweight anti-corrosive aluminium frame with strong double aluminium rivet construction