This straight ruler is made from reliable wooden material with clear scales. Sturdy, non-deformed, , can be used for long period of time. This straight ruler can conveniently measure objects up to 12 inches/30 cm, are of multiple uses no matter for students, office workers and so on. Feature - ColorLight Brown - Material: Wooden - Size: 30.00X3.30X0.30cm/11.79X1.30X0.12in -With this practical ruler, you can measure objects easily and bring huge convenience to your life. -Lightweight but sturdy, smooth, won't break or scratch your fingers easily, you can use it for a long term with peace of mind. -A professional and practical measurement tool for math classes, schools, classrooms, offices, and any other work spaces. - Features inch and centimeter measurements, meet your requirements, to make your measurements easier and more precise. -Our ruler is an excellent assistant tool for artists, designers, architects, engineers, students, portable to take to any places you want. Package list: 72 x rulers