Since its introduction in 2011, Michael Janichs Yojimbo 2 design has earned a respected place in Spydercos product line and legions of devoted followers worldwide. The YoJumbo builds on that success, scaling the design up by over 20 percent and refining its ergonomics to accommodate a wider range of hand sizes. Its formidable four-inch (102mm) Wharncliffe blade is hollow ground for superior edge geometry and features a fully accessible Trademark Round Hole for swift, ambidextrous, one-handed opening. The handles open-backed construction and nested, skeletonized stainless steel liners keep weight to a minimum, while its coarse-textured G-10 scales promote a positive, non-slip grip. A high-strength Compression Lock and four-position pocket clip complete the package, making the YoJumbo a truly formidable cutting tool optimized for personal-defense carry. Specs: Overall Length: 9.29" Blade Length: 3.98" Blade Thickness: 0.145" Blade Steel: Black M4 Blade Grind: Hollow Lock Type: Compression Opener: Spyderco Round Hole Weight: 5.3 oz Pocket Clip: 4 position Handle: Jade G-10 USA