Approx 120mm x 120mm x 20mm in size

Available in yellow, known as uranium glass or vaseline glass glows bright green under UV light.

This item is not glow in the dark, they contain uranium which reacts to UV light (shown here under 395nm). The uranium is added during the manufacturing process as it adds the green/yellow colour.  As you can see from the photos, when placed next to a Geiger counter they emit a small amount of radiation, these emit about the same amount as your granite work surface in your kitchen! Background radiation is around 20-50cpm to give you an idea of how weak it is, they are perfectly safe.  May contain small bubbles.

Located in the UK, ready to ship :)

My hand is NOT included!  Neither is the Geiger Counter!  Nor the Ruler!  Not even the can of pop!

Check out my other Uranium glass bits in my shop!