1.5mm diameter end emitting light collecting optic fibre - green

This optic fibre works like a light collecting light pipe. Light that falls on the sides of the fibre enters, is trapped and reflected to each end, so the ends of the fibre appear to glow brighter than the ambient light level.

Lots of uses for this material, but it needs light falling on the sides to make it glow effectively.

Fluoro green version 1.5mm (nominal) diameter. This stuff is quite expensive, price is per 10cm (100mm) piece. If you buy more than one, it will be supplied as a single continuous piece.