Camillus 7.5" overall length Folding Knife with Marlin Spike, Bamboo Handle and AUS-8 Japanese Steel. Steel is bonded with Carbonitride Titanium that resists rust and corrosion and is up to 10x harder than untreated steel so the blades stay sharper, longer. Dual locking system.The Marlin Spike can be locked into place. This tool is used to help loosen knots. In addition it can be used for unlaying rope and untying knots. Knife Blade is 2.5". Lifetime warranty.