Transparent 180/360 Degree Protractor Creative Triangle/Half Round Plastic Angles Measuring Ruler for Geometry Drawing Design

High-concerned chemical : None Ruler Type : Straight Ruler Promotion Ruler : No Material : Plastic Model Number : Multi-function Geometric Drawing Ruler Origin : Mainland China Type : Ruler Folded : No Material : Plastic Style : Triangle/Half Round/Round Measure Range : 180/360 Degree Packing : 1 x Protractor Ruler