2 Piece Triangle Ruler Square Set 30 60 45 90 Degree Geometry Drafting Tools For Sale

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 application: the rulers with right-angle are useful tools for architects, engineers, artists, designers, students, teacher, etc.

• Pack of 2.
• Material: plastic.
• Color: clear.
• 45 degree ruler measurement: 12cm and 18cm，30/60 degree ruler measurement: 11cm and 18cm.
• Great drawing tool for school or office.