School Stationery 30/60 45 Degree Triangle Rulers Drawing Tool 2pcs Product Name : Triangle Set;Material : Plastic Unit : Centimeter;Color : Clear, Black Rulers Measurement : 10cm, 11cm, 17cm;30/60 Degree Ruler : 19.8 x 11.5cm/ 7.8" x 4.5" (L*W) 45 Degree Ruler : 19.8 x 10cm/ 7.8" x 3.9" (L*W);Net Weight : 41g Package