Sell 180 Protractor Ruler / Half Round Ruler / Angle Measuring Tool / Pembaris Protraktor best price

180 Protractor Ruler / Half Round Ruler -The bottom side length is 10 cm make it easy to put on your books, notebooks and pencil case - Measure protractor with accurate number: the black numbers are clear and easy to identify, then you can read quickly with great accuracy. - Half round shape: the plastic protractors are the common shape protractor, it's universal, you can applied to settle the math problems frequently. - Thick and durable protractors: this clear plastic protractor is thick enough, thus they are not easy to snap - Measure math tool: the geometry protractors are suitable for painting, measure, homework, technical drawing; Abundant bulk, you can send them to your friends and classmates Protractor size: 10 cm X 5.5 cm There are 2 circle numbers, you can read the angle anticlockwise and clockwise. Notice： There is 2-3% difference according to manual measurement. Please check the measurement chart carefully before you buy the item. Please note that slight color difference should be acceptable due to the light and screen.