School Smart Plastic Ruler is strong and lightweight by nature. Features millimeter calibrations and sharply defined markings. Comes in assorted pack of 6. Great for math or geometry homeworkIncludes a 3 hole punched for storage in folders or bindersMade with lightweight but durable material Manufacturer: NINGHAI HUIHUI STATIONERY CO LTD; Model: 1473613; MPN: 1473613; Part Number: 1473613; UPC: 885634287450; Color: Assorted.; Brand: School Smart; Department: ; Size: 6 in; Warranty: ; Label: NINGHAI HUIHUI STATIONERY CO LTD;