Scale up the amount of success during your upcoming promotion with our four bevel 12" maple wood frame civil engineer ruler. It features 4 white plastic scale walls in 10ths and 10ths, 40ths and 20ths and back scales in 30ths and 60ths, 50ths and 25ths. A clear vinyl ruler case is included. Ideal for Highway & Road Engineers, Landscapers, Fencing Contractors and Land Surveyors. We are the nation's largest producer of professional scale devices.