The 727-24 includes (24) Empire 720 post and pipe levels with included displayer. The Empire 5-1/4 in. 720 Polycast post and pipe level is features sturdy, high impact Polycast® construction. This level features 3 durable vials that provide plumb and level readings for decks, fences and support poles. The level is made of high-impact Polycast® construction for durability and is a highly visible blue color so you can find it easily. A heavy-duty rubber band is included with the level for your convenience.