Features: 1Aluminum Alloy Material: This multi angle measuring ruler is made of premium aluminum alloy won't break from bending or rusting more durable and sturdier than the plastic one. 2Foldable and Multi Angle: Users can easily create and measure special angles or shapes with the multi angle measuring ruler to improve work efficiency. 3Precise Angle Measurement Tool: This is a multi angle measuring ruler that is specially etched with markings (inches and centimeters) perfect for precise angle measurement. 4Wide Range of Uses: very suitable for woodworking brick tile wood glass stone lamination construction and engineering projects! Can also replace square and ruler widely used in different fields. 5Sturdy Bolts: Industrial grade bolts reinforced material efficient locking prolong service life. Exquisite workmanship beautiful appearance. Specification: Item Type: Universal Positioning RulerMaterial: Aluminum Alloy ABSColor: As Pictures ShownProduct Size:Single Section Size: Approx. 17.5x2.5cm / 6.9x1.0inInner Hole Distance Size:Approx. 15cm / 5.9in Package List: 1 x PositioningRuler