Pro Sportfisher Nano Tubes
Nano Tubes from Pro Sportfisher are just like their Microtubes except they are longer. With a total length of 50mm, they are ideally sized for medium to larger flies but can always be cut down for smaller ones as well.
The small nubby section on the back is to attach junction tubing like Pro Sportfishers Pro Hookguides.
Color is Clear only as pictured.