Information :

What’s Balisong 

A butterfly knife, also known as a fan knife and in the Philippines as the balisong, is a folding pocket knife. Its distinction is two handles counter-rotating around the tang such that, when closed, the blade is concealed within grooves in the handles. It is sometimes called a Batangas knife, after the Tagalog province of Batangas in the Philippines, where it is traditionally made.

The balisong was commonly used by Filipino people, especially those in the Tagalog region, as a self-defense and pocket utility knife. A common stereotype is that a Batangueño carries one everywhere he or she goes.Hollow-ground balisongs were also used as straight razors before conventional razors were available in the Philippines. In the hands of a trained user, the knife blade can be brought to bear quickly using one hand. Manipulations, called "flipping", are performed for art or amusement. Blunt versions of these knives, called "trainers", are for sale to practice tricks without the risk of injury.

Construction

There are two main types of balisong construction: "sandwich construction" and "channel construction".

Sandwich constructed balisong knives are assembled in layers that are generally pinned or screwed together though may sometimes use a ball-bearing system. They allow the pivot pins to be adjusted tighter without binding. When the knife is closed, the blade rests between the layers.

For a channel constructed balisong, the main part of each handle is formed from one piece of material. In this handle, a groove is created (either by folding, milling, or being integrally cast) in which the blade rests when the knife is closed. This style is regarded as being stronger than sandwich construction.

Legal Status 

Balisong trainers feature a special blunt and unsharpened "blade" and are legal in some areas where balisongs are not.
 
Warning 
All of our product is balisong trainers , it’s legal  . Please do not sharpen it  . 

Parts 
Bite handle
    The handle that closes on the sharp edge of the blade, and will cut the user if they are holding the handle when they go to close it. It's the handle that usually has the latch on it.
Choil
    The unsharpened portion of the blade just above the kicker, that makes it easier to sharpen the blade.
Kicker (or Kick)
    Area on the blade that prevents the sharp edge from touching the inside of the handle and suffering damage. This is sometimes supplanted by an additional tang pin above the pivots.
Latch
    The standard locking system, which holds the knife closed. Magnets are occasionally used instead. Also keeps it from opening up when the user doesn't want it to.
Latch, Batangas
    A latch that is attached to the bite handle.
Latch, Manila
    A latch that is attached to the safe handle.
Latch, Spring
    A latch that utilizes a spring to propel the latch open when the handles are squeezed.
Latch gate 
    A block inside the channel of the handles stopping the latch from impacting the blade.
Pivot joint
    A pin about which the Tang/Blade/Handle assemblies pivot.
Safe handle
    The handle (generally the handle without the latch) that closes on the non-sharpened edge of the blade.
Swedge
    Unsharpened spine of the blade. Some balisongs are also sharpened here or on both sides with either a more traditional look or wavy edges similar to a Kris sword.
Tang
    The base of the blade where the handles are attached with pivot pins.
Tang Pin(s)
    Pin meant to hold the blade away from the handle when closed to prevent dulling; and, in some cases, a second pin to keep the handles from excessively banging together while the butterfly knife is being manipulated.
Zen Pins
    Screws mounted inside the handles that collide with the kicker mounted on the tang to prevent the blade from moving around whilst in the open or closed position.
Blade
    The blade is the piece of steel that runs down the center of the knife that is secured by both handles when closed, one of the sides of the knife is sharp and has a high chance of cutting the user, the other side has no potential chance of cutting the user, but it is still important for the user to be careful.