Multi-Size Triangular Ruler Large Set Square Professional Teaching Aid Tools School Office

Label:Yes Product Features: Accurate scale, handle holding, no burrs on edges and corners Material: ABS Applicable Scenario: Teaching Size: As the picture show Weight: 01-261g; 02-261g; 03-197.2g; 04-218.3g; 05-173.6g Features: 1.Math geometry tool kit are essential tools for architects, engineers, artists, designers, teachers and so on. Appropriate big size to use for geometry drawing and math class, fits for classroom, school or office. 2.Clear large numbers design measurement; easy to read, suitable for blackboard, whiteboard, dry erase board, etc. 3.Plastic material, wear resistance, not easy to deform, and will not scratch your hands. 4.Hollow center design, with detachable handle the teaching ruler is easy to grip. 5.Big size math geometry measuring drawing tool for office and school. Note: 1.1cm=10mm=0.39inch. 2.Please allow 1-2mm error due to manual measurement and make sure you do not mind before ordering. 3.Please understand that colors may exist chromatic aberration as the different placement of pictures. Package Include: 1 x Triangular Ruler/Angle Protractor/Compass