Slabs of prime Montana Whitetail buck deer hair. As good as it gets. Long and straight for spinning, stacking, flaring, clipping. Perfect for X Caddis, Z Caddis, Hedgehogs, Stimmys, Bullet Heads, Dave’s Hopper, Bunnys, Divers, Bass Bugs. Harvesting the full hide gives the fly tyer the option of using slightly different shades and thickness of hair for different patterns. I like the thicker hair for spinning and the finer stuff for flaring. You can see the long, straight fibers with dark tips that fly tyers covet for stacking. So great. A lifetime supply for me.