Brushed Stainless Steel Teleidoscope 3 mirror Square Image Interior By Tomoo Hosono of Japan. Beautifully crafted and very precise 3 mirror system. (3 mirror Systems shows you images inside off into infinity .)
The interior shots of this teleidoscope are looking at a Mountain Dew and Coke Can.
Dimensions are 4 1/2 inches long by 5/8 inches in diameter.