Arctic Legend Fillet Knife Stainless Steel Curly Birch is a traditional Finnish knife with a long blade made by hand from natural materials made for filleting. Fillet Knife has a Rat Tail design. It is equipped with a elastic, trailing point blade with a flat grinding and vertical manual satining. The ergonomic handle is made of birch wood and antlers. The knife comes with a hand-sewn leather sheath to be carried in an upright position.