| 摘要 |
An integrated, non-articulated ladder leveler for leveling ladders and stackable ladders and a ladder or stackable ladder with at least one leveling device installed. The leveler includes a rectangular shaft that fits into the ladder rail, a ladder foot designed to match the other foot of the ladder, and a pin to hold the ladder leveler in place while in use or while closed. The leveler is designed to allow the user to use the ladder or stackable ladder on an uneven surface and without compromising the function of stackability.
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