| 摘要 |
PURPOSE: A weight which is easily collected is provided to prevent the lost and the damage due to lead by a structure storing stones. CONSTITUTION: A weight support keeps the strong wire form of the straight line to prevent a weight from falling between rocks deeply. The weight support is divided at about 30cm to be easily moved and stored and is assembled in a screw type. The weight is manufactured by containing stones in a bag made of eco-friendly cotton material. The weight prevents the waste of resources due to the lost, reduces the stress, and prevents the environmental contamination.
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