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The heavy backpack makes school hours of children that should be pleasant and interesting to be arduous. Also, the weight of excessive baggage exceeding 10% of their weight has bad influence on even right growth of children. The Giant Step has structure attached with a board capable of being ridden in the rear of a storage part. This conveys interest and impression to a heavy and dull road going to the school through a riding and playing act instead of drawing or packing by this.
sadi
Seoul, South Korea
Professor Yundong Lee
sadi
Seoul, South Korea