Leg Leveler for Little Giant Ladder 10106 Fits Classic, Alta One, Titan, Type 1, Type 1AA Super Duty, Black Pro Series, Megalite, Painters Ladder, Tactical Little Giant Ladders. Used to stabilize the Little Giant ladder system on uneven surfaces Clamps on any leg, either side of the ladder. Will NOT fit the Little Giant UltraStep, Flip-n-Lite, Safety Step, Revolution, Xtreme, Velocity, Fiberglass or any other Little Giant Ladder not listed above.