I don’t have a permanent installation so my Wheeley Bar is an indispensable part of my Astrophotography gear. After years of use, it was time to swap out the leveling screws and these new ones are a big improvement over the originals. The are all metal and no longer have the plastic twist knob. They are also longer which allows for more convenient leveling in cases where you have a more uneven surface (I used to use bricks to get more elevation with the old screws).