Stainless Steel Kaleidoscope by Kaleidoscope Artist, Tomoo Hosono of Japan MS. Amazing beauty awaits the viewer. Exterior is Stainless Steel Dimensions are 4 1/2 inches tall by 1 5/16 Inches in diameter. Interior is produced by Polarized filters. Amazing 2 mirror system. Being a polarized Oil filled cell makes this kaleidoscope very unusual. Great images inside. highly recommended.