This movable arm torpedo laser level offers precision, versatility and Durability with a tree vial and oval slot to aloud one arm to move At 00, 450, 900, and 180o, as well as two lasers pointer to guide any Square Bean, I Bean Pipe or Angle to the position desired the level comes Equipped with strong magnetic leveling base that fit on pipe and conduit The level also comes with measurement scale. And precision crafted With aluminum frame provide maximum accuracy and durability.