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- Problem
It requires substantial force to add keys into existing key-rings.
The key introducing part of the key-ring is too tight and fingernail should be used which lead to injury while applying force.
- Solution
The key introducing part would be slightly rolled so that the new key can easily introduced into the ring.
Hong-ik University
Department of Product design
Jochiwon, South Korea
Hong-ik University
Department of Product design
Jochiwon, South Korea
Jae Hee. Park
Joo Yeon. Ha
Ji Eun. Han