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Potri / Crayon for Children

Potri
Potri

Potri_Crayon for Children
Ordinary crayon for age 3 to 7 is hard to grip and easier to break. So we suggest Potri, we use tetra port shape to make easier to grip and stable. Potri has same shape with every direction it is easy to grip and helps improving children's hand muscle.
It is able to change crayon's color by changing crayon part from silicon frame, you can keep replace it when crayon worn down. By ability to change different colors and its unique shape, children can play variety way to improve creativity.

University

DongSeo University

DongSeo University
Busan, South Korea

Sun Young Ha,
DongSeo University

Ji Hyun Hwang ,
Dong A University

Eun Young Choi,
Ulsan National Insritute Of Science&Technologe University