Fly box: foam insert & 167 slots
Silicone Fly Box Portable Transparent Impact Waterproof Fishing
Micro grip Foam securely holds flies/Dimensions: Double-sided 90 slots in total / 3.78 x 2.76 x 1.42. Perfectly sized with round corners to slip
SF Fly Fishing Box Double-Sided Small with Lanyard Waterproof Pocket Clear Lid Easy Grip Foam Insert Ice Fishing Jig Head
Fly Box Waterproof Black-Slit Foam-Double Sided – Perfect Hatch
Silicone Fly Box Portable Transparent Impact Waterproof Fishing
Just peel and stick (glue will most likely be needed depending on the surface) Cut down to the size you need if too big buying 12 gives you
(Pack of 12) Medium Fly Foam Ripple, Peel and Stick, 5 3/8 L x 3 7/8 W x 1/4 Thick, Off White Color
Fly box: foam insert & 167 slots
Richard Wheatley Replacement foam pads. They are supplied with Heavy Duty tape on the backs so all you have to do is peel off the backing and insert
Wheatley Foam Fly Box Inserts
Fly Box Waterproof Black-Slit Foam-Double Sided – Perfect Hatch
4 Ripple Foam Richard Wheatley Fly Box Insert Length 4 11/16 x Width 3 3/8 (Part # 5030) Standard lead time is 14 days
4 Ripple Foam Fly Box Insert
Wheatley Foam Fly Box Inserts – Bear's Den Fly Fishing Co.
Silicone Fly Box Portable Transparent Impact Waterproof Fishing
Our Foam Fly Box is made from ultralight high-density EVA moled foam, with corner magnets to keep the box closed. There is plenty of headroom for your dry fly wings and it's perfect for organizing all of your nymphs and midges. Unlike typical foam boxes, the premium foam slits allow flies to be securely fastened and organized while also protecting the foam allowing flies to stay in position considerably better.
JHFLYCO Foam Fly Box - Gray | Jackson Hole Fly Company