mtn systems tokyo subway Dart water-soluble

water-soluble

so it stays visible and doesn't catch or flex when you're working alongside a ruler

Grogs Black Magic Ink is a special invisible ink that is totally invisible when applied but in turns into a deep dark color in reaction with daylight/UV-light

From there

Each image is randomly generated when up to thirty people send the drawings between them

mtn systems tokyo subway Dart water-solubleMTN System Milano is a miniature model in cardboard that you can paint yourself. Paint a whole car or panel without the risk of getting caught by the police. For best possible results we recommend you use fully covering acrylic pens, which gives the same feeling as with fully covering spray paint. The train will be about 43 cm x 10 cm x 9 cm once it has been folded.