"Grivory Paradox Description The Paradox designed from the ground up to specifically mimic a traditional Balisong or Butterfly knife in every respect but one it can't be opened with one hand! That's right, the Paradox is not a switchblade, gravity knife, or assisted opener and can't be opened without the use of both hands. So, while it looks and feels like a classic Butterfly knife, it isn't. It's a legal Balisong! Its twin handles feature two integral springs that are similar to a conventional slip joint folder. They are designed to rotate 180 degrees around the blade's unique split tang and use strong opposing spring tension to lock the blade open or hold it firmly closed. Don't worry about it taking two hands to get it into action, since once it's opened it will never close inadvertently. Plus, its locking mechanism is impervious to spine whack and the most violent stresses and shocks imaginable. Every detail of the Paradox is a testament to Cold Steel's renowned craftsmanship. The leaf shaped blade is hollow ground from imported Japanese AUS 8A Stainless (instead of the cheap steel used by our competitors) and, due to the latest advances in heat treatment, it offers a thin, ultra keen edge that lasts. The skeletonized handles are CNC machined from solid billets of 6061 aluminum (instead of being cheaply cast out of zinc) and feature a hard-anodized coating to reduce scratches and oxidation. The Grivory handle Paradox with a 4-inch blade is the more affordable version of the Paradox. With the exception of the handle slabs, it's made with the same materials and attention to detail, and offers the same tremendous strength, sharpness, and cutting power of its more expensive counterpart. Specifications: - Weight: 5.8 oz. - Blade Thickness: 3.5 mm - Blade Length: 4 1/2"" - Overall: 11 7/8"" - Handle: 9 3/4"" Long Grivory - Steel: Japanese AUS 8A Stainless - Stainless Pocket / Belt Clip"