4 Pack Adjustable 3" to 6" Mini Screw Jack for Floor, Post, Joist, RV, House ...

Easy To Use:These house leveling jacks are easy to install and adjust, designed to stabilize and support beams and joists during construction and repairs. Application Scenario: Old houses and natural disasters often cause floor joists to crack, support beams to rot, and porches or decks to sag.

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