Specification Brand : Mahira Nautical BulletPoint1 : Brass 9" Proportional Divider With Lather Cover. BulletPoint2 : MATERIAL: Brass & Steel product are same as show in the picture. BulletPoint3 : proportional dividers can be used to increase or decrease lengths of lines and diameters of circles, and can they be used to inscribe regular polygons within circles (dividing the circumference of a circle into equal parts). BulletPoint4 : Digital inclinometer:easily attaches to tables, fences, blades and other metallic surfaces,inclinometer tilt angle meter BulletPoint5 : Inclinometer:large, bright digital display stays on as long as you’re using it, improving visibility and usability,inclinometer tilt angle meter Color : Yellow ExternallyAssignedProductIdentifier : 7687930401911 IncludedComponents : measuring device ItemDisplayDimensions_Height : 1.57 inches ItemDisplayDimensions_Length : 3.94 inches ItemDisplayDimensions_Width : 0.79 inches ItemDisplayWeight : 0.12 pounds ItemName : Mahira Nautical 2 Pcs Brass Antique Drafting Tool 9" Proportional Divider Scientific Instrument A ItemPackageDimensions_Height : 0.98 inches ItemPackageDimensions_Length : 6.1 inches ItemPackageDimensions_Width : 2.76 inches ItemTypeKeyword : joint-calipers-and-dividers Manufacturer : Mahira Nautical Material : Brass ModelNumber : 450DST05100GYMRR PartNumber : 450DST05100GYMRR ProductDescription : Brass 9" Proportional Divider.Among several functions, proportional dividers can be used to increase or decrease lengths of lines and diameters of circles, and can they be used to inscribe regular polygons within circles (dividing the circumference of a circle into equal parts). Fine piece of drafting equipment-very well made. Brass 9 Inches Proportional Divider Its Come in Leather Cover Brass 9" Proportional Divider With Lather Cover MATERIAL: Brass & Steel product are same as show in the picture package-1 piece pack ProductSiteLaunchDate : 2018-10-27T07:00:00.000Z Size : 6 to 7.9 Inches Style : Modern SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 44111800