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

Chink / toothbrush


The 'Chink'helps using a toothpaste economically and comfortably.
You can squeeze the toothpaste easy to the last drop when you push the end of a tube into a chink in the handle of the toothbrush.
It has a separable handle, it is very easy to carry.



seoul, South Korea

Meang Hyung-je


Han, Chang-geun

Han, Chang-geun
Seoul, South Korea