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

20 Pack colorful plastic ruler 12 inch straight ruler flexible ruler with inches and metric for school classroom, home, or office (colorful) Specifications: Material: plastic Measure range: 0-30 cm/ 0-12 inch Total size: 30.8 x 3 x 0.15 cm/ 12 x 1.2 x 0.06 inch Color: green, rose red, blue, yellow 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.