Buck 297DP Sirus, Assisted Opening, Liner Lock Folding Knife Includes Knife, Box, and Warranty Registration Card The Buck 297DP Sirus TM features a 3-1/4" drop point 420HC Stainless Steel Blade The Sirus features Buck's assisted opening patent pending ASAP Technology The Sirus comes with solid deep platinum anodized aluminum handles and a stainless steel belt clip for easy carry The 297DP Sirus TM, as with all Buck Knives, features Buck's 4-Ever Unconditional Lifetime Warranty