4200 series extra heavy duty aluminium extension ladder. Meets or exceeds CSA Grade 1A, ANSI Type 1A. Rigid “Box Section” side rails, unequalled for strength and durability. Side-mounted rope pulley and slide guide system keeps rope clear of climber’s feet and allows easy raising and lowering of the fly section. Yellow ABS, high impact non-marring end caps. Premium heavy duty rung locks. Slip-resistant serrated “D” rungs for safe climbing and comfort. Heavy duty ribbed swivel feet with ice pick.