The Twisted F.A.B. (Foam Assisted Blob) by Les Lockey

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Hook: Kamasan B160, short shank hook, size 8 or 10.
Thread: Black Veevus GSP, 50D.
Tail: 5 or 6mm. diameter, black foam cylinder,
Body: Any fine cored Fritz in black and fl. green, such as, Definite Advantage 15mm. translucent Fritz from Dave Downie at flyfishingworld.com or FNF 10mm. Jelly Fritz from fnflyfishing.co.uk