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:

iF SOCIAL IMPACT PRIZE (free of charge)

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

Publish your project

Jing / Furniture


Usually when moving the chair, Because the sound will disturb the person nearby.
If the bevel at plus one wheel at chair.
Not only can reduce the sound , but also easier when moving a chair.


Tatung University

Tatung University
Taipei, Taiwan

wen-yi Chang,
Tatung University