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The Glo Box has been redesigned as a soft shell, foldable box that will allow you to do demonstrations in brightly lit surroundings. Designed to block ambient light and provide a vivid display of our simulated germs. The Glo Box Kit contains one 8 ounce bottle of Glo Germ Gel OR Oil and one 4 ounce (1.9 ounce by weight) Glo Germ Powder, a 21 LED UV Flashlight (batteries included, the fold flat Glo Box and our hard plastic carry case.