Features and Benefits:�Lightweight and durable Polycast® construction�Three vials to read plumb and level�Ideal for leveling posts on decks, fences, and support poles�Includes high-strength rubber strap for attaching to work surfaceSturdy high impact post level helps establish plumb or level on decks, fences, support poles, etc. This post level has vials that read plumb and level and is made of a very durable plastic construction. A heavy duty rubber band is included.