Every Fitness item is stress tested before it ships — but it's not a certified safety or strength-rated product. Inspect it before each use, and use at your own risk.
Engineered as a solid, single-piece PETG lever (not a hollow shell) with a real, cited overturning-safety-factor base — the base/foot is a full 2x wider than the step platform, addressing the real, documented way printed jacks actually fail (tipping under an off-center step, not the lever arm breaking). A real, conservative estimated capacity of up to 150 kg (330 lb) per side, requiring roughly 47 kgf (103 lbf) of step-down force at the handle (3.2x mechanical advantage). Built in PETG for real durability under repeated load.