Leg Size: 3-1/2" Wide X 5-1/2" TallMaterial: PlasticVials: 2 Level, 1 PlumbVial Material: ABS PlasticDurable Impact Resistant Molded BodyRugged Acrylic Vials Reads Both Plumb (Front To Back) And Level (Left To Right) SimultaneouslyReflective Backing Increases Vial VisibilityRubber Strap Allows Hands Free Use Quickly Attaches To Any Post, Pole Or Stringer