Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Angle Ruler / Ruler

Angle Ruler

ANGLE RULER is a ruler which can draw angle. In the daily learning life, we often need to draw angle and the most commonly used is the triangle belts of 30 °, 45 ° and 60 °. However, it's inconvenient to carry such kind of triangle belts and if you do not have them , you can not draw an accurate angles. ANGLE RULER can solve this problem. ANGLE RULER has three slides, corresponding to 30 °, 45 ° and 60 ° three angle. When you want to draw an angle, just need to push the corresponding slide, you can draw an accurate angle.


Yanshan university

Yanshan university
Qin Huangdao, China