Ideal tool for leveling ground poles; roof mounts; wall mounts or even fence or deck posts. _x000D__x000D_
Works well on both square and round posts._x000D__x000D_
3 Vials: 1 Plumbs 2 Horizontal Levels. _x000D__x000D_
Magnetic Strips for Easy Hand-free Reading. _x000D__x000D_
Rubber Strap for Easy Hand-free Reading._x000D__x000D_
Foldable for Easy Storage.