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

Retractable warning cones / Warning cones

Retractable warning cones
Retractable warning cones

Retractable Waring Cone is a combination of retractable belt and waring cone, which is more convinient and efficient when using and storing it. With it, the users won't have to carry numbers of waring cones like they did before. They can simply mark out the waring area by lengthening the belt.
Moreover, there is an optical fiber on the belt, which enhance the capability of catching person's attention who is passing by.


Tunghai University

Tunghai University
Taichung, Taiwan

Jun-Yi Chen,
Tunghai University

Siou-Ming Liang ,
Ming Chuan University