Buck 177BK Adrenaline, Liner Lock Folding Knife Includes Knife, Box, and Warranty Registration Card The Buck 177BK Adrenaline TM features a 3" 420HC stainless steel modified drop point blade The Adrenaline comes with skeletonized anodized black aluminum handles The Adrenaline also comes with a stainless steel belt clip, and a thumb stud for one hand opening The 177BK Adrenaline, as with all Buck Knives, features Buck's 4-Ever Unconditional Lifetime Warranty