A lid rest used in the tea ceremony, the main body made of bamboo with a silver cover at the top and bottom edges. It looks simple, but because it is made of natural bamboo, the shape has a slight distortion.
The same process can also be applied to pottery and glassware. In all cases, the work is very difficult and time-consuming, as each piece must be made to match the shape of each material.
(Yamanaka)