Firebird - Size 00 / Size F

Varigated Color Reed Thread - Firebird
 
This Varigated Color threads are just like any regular reed thread with unbreakable wooden spools.
Great for oboe and bassoon reedmaking.
 
* Note that this is not size FF, it's F, so it's slightly thinner than FF.
(Actual diameter difference of sizes are 0.003inch /0.07mm) 
I've made reeds with F without any problems. Just know it can't handle as much pulling. However, it's never broken on me while making reeds.