20 Pack Plastic Ruler 12 Inch Straight Ruler Flexible Ruler With Inches and Metric for School Classroom Home or Office

20 Pack plastic ruler 12 inch straight ruler flexible ruler with inches and metric for school classroom, home, or office Specifications: Material: plastic Measure range: 0-30cm/ 0-12 inch Total size: 30.8 x 3 x 0.15 cm/ 12 x 1.2 x 0.06 inch Color: blue, pink, green, yellow Package: bags Weight: 18 g Package: bags Package includes: 20 x Plastic rulers Warm notice: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.