Specification Brand : Eujgoov BulletPoint1 : Made of high quality stainless steel, high hardness and resistance, to use. BulletPoint2 : Two arm design measures inside and outside angles fast and easily. BulletPoint3 : Red and black color word mark on surface, easy to read data. BulletPoint4 : High hardness ruler will not deform and makes a great double-sided cutting and double-scale, easy to use. BulletPoint5 : Two different scale size of rulers for your choice, meet your different needs. BulletPoint6 : Practical tools for drawing & measuring in offices, workshops, architecture, and engineering BulletPoint7 : Package Included: 5 Pack Metal Ruler Color : Silver ExternallyAssignedProductIdentifier1 : 0002233467568 ExternallyAssignedProductIdentifier2 : 002233467568 ExternallyAssignedProductIdentifier3 : 00714905042361 FdaIndicationOfUse : otc FdaInstructionsForUseType : consumer FdaLabelType : consumer GraduationRange : 3 feet IncludedComponents : 1 x Gauge ItemName : Concrete & Masonry Materials Estimator - Slide Rule ItemPackageDimensions_Height : 0.1 inches ItemPackageDimensions_Length : 7.5 inches ItemPackageDimensions_Width : 3.5 inches ItemPackageQuantity : 1 ItemTypeKeyword : construction-rulers Manufacturer : Builder's Bookstore Material : Stainless Steel Material1 : Metal Material2 : Stainless Steel MeasurementAccuracy : 0.003mm ModelNumber : 12-1222 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Eujgoovd6zgefmoir27585-01 ProductDescription : Concrete & Masonry Materials Estimator -Slide Rule Style Quickly calculates the number of concrete blocks, bricks, bags of masonry cement, and cubic feet of concrete. Size: 3.5" x 7.25" Pocket Size/ ISBN No. 9781622709861Material: Heavy duty calculator board with metal corner eyelets. ProductSiteLaunchDate : 2016-05-05T01:00:12.830Z Size : 300mm*150mm SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 5