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a butter knife / a hot butter knife

a butter knife

A kind of Butter Knife.After you put hot water into the hollow shank,the knife will become hot.So,you can use the hot knife smear cold butter easily.

University

National Taiwan University of Arts

National Taiwan University of Arts
Taipei, Taiwan

Rungtai LIN, Ph.D.

Design

National Taiwan University of Arts

National Taiwan University of Arts
Taipei, Taiwan