Butterfly knife
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A balisong, also known as a butterfly knife, fan knife or Batangas knife, is a type of folding pocketknife that originated from the Philippines. Its distinct features are two handles counter-rotating
Butterfly knives in closed and open positions
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Gravity knife
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A gravity knife is a knife with a blade contained in its handle, which opens its blade through the force of gravity. This mechanism of opening is fundamentally different from the switchblade, which ex
Butterfly knife
…laws and reasons as switchblades or concealed weapons, additionally having restrictions in some countries due to the balisong being classified as a gravity knife. Within the Philippines, it is no longer as common in urban areas as in the past. Names for the knives in English include "fan knives" and "butterfly…
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