Once again NMF has made fly tying easier by engineering and Laser cutting NMF foam spines for the VERY popular SWGC...IN HOUSE.  We have taken the guess work out of the most important element of the fly...more importantly the Time it takes to tie them! All of the spines are numbered, for a color by number style tying. We also went ahead and made schematics of the hardware needed and the location of the spines on said hardware of all sizes. (schematics in item photos) 
For best results use with NMF flash brushes for the 4-7" and the NMF hotcore brushes for the 8-9"
Sizes 4-7" 2mm foam
Sizes 8-9" 3mm foam
Each pack contains 2 complete sets of NMF foam spines.
Color of foam may vary.