Casstrom Puukko Kit 4.75 in Fixed Blade Knife. 86cm) overall. 4.75" (12.07cm) carbon steel blade. Includes: Carbon steel blade; Brass bolster; Brass rivet; Curly birch block; Reindeer antler spacer; Vegetable tanned leather; Plastic liner; Waxed thread. Boxed. Specifications for Casstrom Puukko Kit 4.75 in Carbon Steel Fixed Blade Knife: Manufacturer: Casstrom Blade Length: 4.75 in Overall Length: 9 in Blade Material: Carbon Steel Included Accessories: Carbon Steel Blade Weight: 0.74 lb Length: 22.86 cm Package Contents: Casstrom Puukko Knife Kit