LeveLok Ladder  Permanet Mount Style Leveler (LL-STB-1AL) Work safely on uneven ground. Extends a full 10. Adapts to nearly any indoor or outdoor situation Meets or exceeds OSHA/ANSI requirements up to and including type 1AA (375lbs) ladders Triple plated pivoting foot with claw flips back for ice, snow, or gravel Fits aluminum, fiberglass, extension, combination, articulating, double sided step, sectional ladder