STOBOK Magnetic Tool Magnetic Dry Erase Protractor Protractor Ruler Geometry Measurement Tool for Whiteboards Chalkboards Teach Geometric Math Tool, 19.65X11inches Magnetic Tools

STOBOK Magnetic Tool Magnetic Dry Erase Protractor Protractor Ruler Geometry Measurement Tool for Whiteboards Chalkboards Teach Geometric Math Tool, 19.65X11inches Magnetic Tools

• Geometry Measurement Tool - The ruler and protractor 2- in- 1 design. Makes it can measure length fixed ruler 0- 50 cm/ 0- 19.7 inches. By moving the ruler, the semicircular protractor at the top can measure from 0- 180 degrees
• Magnetic Dry Erase Protractor - Plastic Angle Protractor is made with a magnetic sheet design that can attach to the metal surface and is space-saving
• Wide Applications - Protractor Teaching Tool is a professional teaching accessory for , classrooms, teachers, and so on, which can ensure easy demonstration of math, engineering and geometry concepts. Use it to teach measurements, angles and shapes
• Math Measuring Tool - The angle ruler can allow and teachers to draw and circles, which is the best choice for math teachers to draw on the blackboard
• Premium Material - Magnetic Ruler Tool is made of premium Plastic and Magnetic material with excellent workmanship, safe, practical and to use