Specification Brand : FTVOGUE BulletPoint1 : MATERIAL: This carpenter square is made of aluminum alloy die casting, which is oxidation resistant, not easy to rusty. Each ruler is thick, with high hardness and not easy to break BulletPoint2 : ACCURATE SCALE: Engraving scale possess high accuracy, to ensure the accuracy of work. This triangular also include a unit conversion table for length and angle to make your work more convenient BulletPoint3 : VERSATILE AND MULTIFUNCTION: Accurate rafter ruler to meet a variety of measurement needs, can measure angles and accurately lines, allowing you to draw a variety of geometric shapes BulletPoint4 : CLEAR GRADUATIONS: Include 30cm triangular ruler, with black matte finish to prevent dazzle. Employing etching for the scale, and has a common rafter conversion table on the ruler for clear conversion, providing you with a high level of accuracy and easy readability BulletPoint5 : DELICATE ERGONOMIC DESIGN: Metal square is easy to hold when using and convenient to hung and store when not in use, and the ruler surface is smooth and flat, so that won't hurt your hand when you use ExternallyAssignedProductIdentifier : 7551520127652 ExternallyAssignedProductIdentifier1 : 0717067441386 ExternallyAssignedProductIdentifier2 : 717067441386 ItemName : Aluminum Alloy Rafter Square, 30cm Woodworking Ruler with Engraving Scale Woodworking Square, Square Angle Tool, Carpenter Square ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 21 centimeters ItemPackageDimensions_Width : 21 centimeters ItemTypeKeyword : carpentry-squares Manufacturer : FTVOGUE MeasurementAccuracy : 0.1mm ModelNumber : FTVOGUEzgsgvbk7ph NumberOfItems : 1 PartNumber : FTVOGUEzgsgvbk7ph ProductDescription : Spec: Item Type: Rafter Square Material: Aluminum alloy Measuring Length: Approx. 30cm / 11.8in