Hook: Hanak H400BL #10-16
Bead: 4mm (5/32″) TFC Slotted Black or Nickel Tungsten
Underbody: Lead Wire
Thread: Uni-Thread 6/0 135Denier Camel
Head: Hareline Pearl Core Braid olive
Case: Deer Hair Dubbing mixed colours to match local stream bottoms
Tie it in any colour to match the naturals where you fish. Makes a good point fly for a Czech Nymph rig due to the weight/density and the upturned hook.