Double sided with graduations and numerical markings on both upper and lower edges Two square ends No quiet space - complete rule is graduated See images for further explanation of markings and graduations Manufactured from stainless steel Length: 6 inch Width: 20mm Thickness: 1.0mm Graduation front upper edge: 32nds of one inch Graduation front lower edge: 64ths of one inch Graduation back upper edge: 1mm Graduation back lower edge: 0.5mm