The 5 Inch Post Level (with Magnetic Strips) by Mayes is ideal for "plumbing" fence posts, flag poles, support poles, and more. It's also great for leveling decks and fence rails. Made of heavy duty, high impact composite polymer, it includes magnetic strips for working on ferrous surfaces. It features 3 acrylic leveling vials and comes with a stretchable strap for easy attachment.

Constructed of Durable High Impact Composite Polymer
3 Large High Visibility Acrylic Leveling Vials (Accurate to 0.001 Inch)
Elastic Strap to Hold Level in Place
Ideal for Fence Posts and Rails, Flag Poles, Leveling Decks, and More
Includes Magnetic Strips for Ferrous Surfaces
Made in USA