Specification Brand : Fafeicy BulletPoint1 : Accurate Scale,Protractor and ruler of angle measure tool are etching, the readings are clear and accurate, easy to read. BulletPoint2 : Wide usages,This product is suitable for engineering, angle measurement, student drawing, architectural design, carpentry, length measurement. BulletPoint3 : Arm - The swing arm can be locked in the desired position by a knurled nut for quickly and easily identifying angles and marking angles. BulletPoint4 : Manufacturing Materials,The material used for this product is aluminium, which is a material that is resistant to high temperatures and . Due to this property, long service life is guarantee. BulletPoint5 : Safety ,The metal edges and corners of this product are polished so that you won't cut your hands while using it. Color : Black and White ExternallyAssignedProductIdentifier : 7635200825639 ItemName : 180 Degree Woodworking Protractor, Woodworking Ruler, Aluminum 180 Degree Protractor for Woodworking, Woodworking Engraving Protractor, Lunch Boxes ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 12 centimeters ItemTypeKeyword : construction-protractors Manufacturer : Fafeicy ModelName : GLOGLOWyin1o6auqz ModelNumber : Fafeicykhw84y6bpi PartNumber : Fafeicykhw84y6bpi ProductDescription : 1. Manufacturing Materials: Prime aluminum alloy material forged straightedge body, aluminum alloy corner head does not , . 2. Accurate Scale: This woodworking protractor is a high accuracy engraving scale, this aluminum alloy protractor, wear resistant, does not fade. 3. Safety : The edges and corners of this protractor or measuring tape have been carefully polished and will not damage the hand. 4. Abrasion Resistance: The measuring ruler that is made of stainless steel has gone through plating treatment to enhance its wear resistance. 5. Flexible Design: The rotatable and straight design of this angle finder makes the ruler more flexible when you want to use.