Zotemo 6 Inch Metal Ruler Set - Dual Scale Metric & Imperial,150 mm Straight Edge Rule, Laser Engraved, Edge-to-Edge Measuring for School, Geometry, Crafting & Gifts (2-Pack)

Edge-Start Measuring Technology: Measure directly from the ruler's left edge, eliminating traditional gap errors for precise geometry and engineering work

Child-Safe Design with Rounded Corners： Smooth edges protect young hands, certified for classroom use and ideal as student gifts

Laser-Engraved Dual Scales & Conversion Chart： Rulers with inhes and centimeters, Permanent imperial (1/32") and metric (0.5mm), markings with backside unit conversion reference

Ultra-Portable Aerospace Aluminum： Only 11g per ruler with hanging hole, fits effortlessly into pencil cases, planners, and toolkits.

Teacher-Recommended Durability： Anodized finish resists rust and bending, trusted by educators for math, drafting, and bullet journaling.