2 Pieces of Large Blue Triangle Rulers: 6 inch 45/ 90 degrees and 9 inch 30/ 60 degrees; Material: plastic; Durable, sturdy and easy to use
Unique Design: 2 kind of measuring units, inch markings on one of the right-angle side and centimeter numbers on the other side
One of the right-angle side of the 45/ 90 degree ruler is 6 inch, the rest of right-angle side is 16 cm; The longer right-angle side of 30/ 60 degrees ruler is 9 inch in length, the shorter right-angle side is 13 cm
with Hollow Center: the student triangles are easy to grip; The hollow center of 45/ 90 degrees triangle is a protractor and the other is a interesting hollow drawing pattern
Wide Awith Hollow Center: the student triangles are easy to grip; The hollow center of 45/ 90 degrees triangle is a protractor and the other is a interesting hollow drawing patternpplication: the rulers with right-angle are useful tools for architects, engineers, artists, designers, students, teacher, etc
