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

Key Friend / Key tool

Key Friend
Key Friend

KF(which is short for key friend) is specially designed for persons who do not have
good-sight, and those elderly who often forget to withdraw keys after opening door.
When users can not view lockhole in darkness and also can not feel where the lock hole locates accurately, he/she can have the aid of KF as an assistant tool.Just pressing round leather buttons bythumb and forefinger, two flashlamps at top face will be on to light. When users forget to withdraw key from lock hole, it will generate buzz voice to
wake them to take away. KF can hold diversities of “key holdings” inside its body, no
matter round or hexagon, metal or plastic.


Nanyang Polytechnic

Nanyang Polytechnic
Singapore, Singapore


Ning, Zhu

Ning, Zhu
Zheng zhou, China