High quality fly tying foam sheets come in 4″ x 6″ sections in a variety of colors. Available in 1mm, 2mm, 3mm, 5mm, and 6mm thicknesses suitable for tying freshwater, saltwater, and warm water species patterns. Fly tying foam sheets are perfect for creating high floating foam hoppers, ants, terrestrials, poppers and other patterns. Super quality, great colors and easy to tie with.