1b) #700 Xtenda-Leg® Ladder Leveler with CLEATED FEET "PAIR" Xtenda-Leg® is OSHA safety standard

Xtenda-Leg® is OSHA safety standard ANSI 14

that is the leg you squeeze the locking plates (thumb on lock plates and forefinger on lower black bracket) till plates are horizontal (this will allow shaft to be able to move up or down freely)

one leg will be holding all the weight

Extension Ladders should be used at 75

Xtenda-Leg®  Ladder with Cleated Feet is an attachment for use on penetrable surfaces

1b) #700 Xtenda-Leg® Ladder Leveler with CLEATED FEET "PAIR" Xtenda-Leg® is OSHA safety standardThe Most Important Accessory Improves Safety while Increasing Efficiency Xtenda Leg Ladder with Cleated Feet is an attachment for use on penetrable surfaces, such as grass, grave, asphalt, snow, ice, etc. Allows leveling a ladder to work safely and efficiently on surfaces that can be slippery and un safe on standard ladder feet. Adjust the level of a ladder in seconds! Push down on lock plates, level the ladder, then release. Special formula of Kraton