Some blades, like this one-off custom design, retain the "Alpha Case" hard oxidized layer on the outer skin, left over from heat treatment. This very hard skin is slick, like teflon, and helps the blade slip through a target.
Dimensions: Overall length 27.5 with 21.5" blade, forged Titanium (90Ti10Nb) with distal taper and spine ridge, weight 12.6 oz Handle: 6" long, leather with black nylon cord, Elkskin wrap and forged Titanium Grade 38 ornaments Sheath: Elkskin from the same hide as the handle wrap