The Nosferatu butterfly trainer is a deluxe 9 1/2" curved Balisong training knife. White Aluminum handles with Black ABS inserts. Spring loaded locking bar makes one handed opening and closing much smoother than traditional snap lock. Powder coated stainless steel blade with false edge.Blade etched on both sides with tongue, teeth, and eyeball. This trainer has excellent movement to it right out of the box, making practice on your favorite tricks both fun & effortless.