From his y line-01, this is 'Galaxy' a kaleidoscope by Yoshiaki Onodera.
With its brilliant cobalt blue aluminum body and interior 3-mirror system, this kaleidoscope is sure to take you to the deepest corners of the galaxy. Just as no two galaxies are the same - no two kaleidoscopic images are the same. The Galaxy kaleidoscope will offer a countless number of images, with no two ever repeating, for a lifetime of enjoyment.
Measures 7" long by 1" in diameter.