It was once used to store and transport charcoal.
By wrapping the charcoal, it helped protect it from moisture and reduced cracking or chipping during handling.
　
The construction is simple and purely functional, without decoration, yet it reflects the practical knowledge embedded in everyday life of the past.
　
The material is susuki grass, traditionally used in daily life, including as roofing material.
　
Gathered and tightly bound, the dry texture of the fibers and a surface shaped by simple, practical use remain visible.
　
Measures : 118cm(46.5in) x 50cm(19.7in)