These jack stands have aluminum lightweight construction.
They have hard coat anodized aluminum contact surfaces at the top and the bottom. So, this means contact with each other, the air jack itself (if you were to bump it while you are putting up or down would still be aluminum to aluminum contact so you do not harm your jack stand).
These are great for your 991 GT3 Cup or your GT4 Clubsport Car.
This is for a set of 6 pieces, two rear and one front of the bases and the second stage.
See our video on Youtube here for more details on the stands:
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