Designed by product designer Hiroshi Yamasaki, who develops his original brand as YAMASAKI DESIGN WORKS.

The prototype is made by shaving a conical block with a plane, a woodworking tool. It is a 'glass like a pebble' that is not designed from the point of view of its use, but rather from the point of view of the use to which it is put.

［Note]

Bubbles and scratches may appear on the surface of the product, but this does not mean the product is defective.

Weight and size may vary slightly as this is handmade.