If you fish stonefly nymphs, you'll want to have several sizes of these Tunghead bottom bumpers.
Nymph flies
Tunghead Stonefly Nymph
European Style Nymph Fly Patterns / Tactical Tunghead Quill Jig
, The Tunghead Double Bead Stonefly Nymph gets down when you are fly fishing deep for large trout or smallmouth bass. Using two tungsten beads for
Tunghead Double Bead Stonefly Nymph Yellow
Conehead Flies / FREE SHIPPING / Tunghead Woolly Bugger
What Do Largemouth Bass Eat? - Into Fly Fishing
Is this 9' 5wt a good fly rod for the Truckee River? : r/flyfishing
TomSutcliffe - The Spirit of Fly Fishing
DIY Guide to Fly Fishing in Crater Lake National Park
10 Fly Fishing Flies for Spring
18 Best Trout Flies for March, April, and May: Spring Fly Fishing
STONEFLY
Tungsten Bead Head Flies
Stillwater Midge Fly Pattern / Tunghead Zebra Midge