FlyBox UK Gel Core Fritz

This gel core fritz from Flybox UK is well known for being one of the OG choices for tying blob and booby patterns. It has a mix of translucent fibers and more opaque filler fibers to add bulk and profile to these patterns. 

Here's what FlyBox UK has to say:

Gel Core Fritz 15mm is purpose designed for fly tying – not some second rate material from the textile trade.  With Gel Core fritz we addressed key problems with the vast majority of fritz – the core doesn’t accept dye and the material falls apart when tying. Featuring our Gel Core, which has an impregnated gel, which binds the fibres into the core. Meaning as well as looking great on the fly, there is no fiber loss and it will never fall apart when tying!! The material is all professionally dyed using state of the art pressure dyeing machines which are computer controlled to ensure 100% color consistency and intensity.