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When we taking the escalator with a normal suitcase,Without holding the suitcase might move and fall, and easily getting broken or hurting people.
This Square and Circle suitcase (hereinafter called S&C) is a suitcase that wheels mainly composed of three circle parts and two square parts, can be firmly fixed to escalator by itself. The distance between circle and square part is just fits the escalator's groove, so the S&C suitcase can be stopped and stucked steadily by the escalator. Therefore, S&C suitcase will dispel your worries that the suitcase will fall and hurt people. Furthermore it can release your hands as yo
Jiangnan University/ school of design
Zhejiang university of technology/school of art
Nanjing University of Science & Technology/ school of design art & media
Nanjing Forestry University/ college of furniture and industrial design