The American made SOG Pentagon Blackout OTF Automatic Knife is designed to meet the exacting demands of users who require a dependable one handed, fast opening switchblade knife. SOG’s Dynamic Lock-up System redefines open reliability and blade lock up strength in OTF knives. When it’s there, it’s held firmly in place in a secure, reliable and confident lock up. Designed for professionals, law enforcement and warfighters, the CRYO S35VN spear point blade and hard anodized aluminum handle reinforce the durability of the switchblade, guaranteeing years of hard use. Easy to open with either hand and American made, it delivers a rattle free solution to a problem that’s plagued OTF knives for years. The SOG Pentagon Blackout OTF Automatic Knife delivers reliable OTF technology for professional users who rely on high-end steel and technology. The 3 7/10” blade is an American-made steel featuring vanadium and niobium carbides that provide wear resistance The 4 1/10” hard-anodized aluminum handle is a non-reflective black that’s as tough and durable as the titanium nitride finished blade