The famous weapon for Wing Chun martial art. This butterfly knife has a 31cm blade, perfect for conceal carry and use in confined areas like indoors and on boats. It features a D-guard with finials that are reminiscent of many European swords.
They were always used in pairs. Traditional techniques include fighting agasint same set of weapons as well as fighting against spears, which is very risky.
![Butterfly knife](https://pic.baike.soso.com/ugc/baikepic2/0/20170816171816-1117351037_jpeg_600_337_55902.jpg/1284)
![Butterfly knife used in Sifu](http://5b0988e595225.cdn.sohucs.com/images/20180112/c419f3f8684c4da0b99a4fd9f0b2d0ac.jpeg)
Butterfly knife featured in *Sifu*
![](http://5b0988e595225.cdn.sohucs.com/images/20180112/c9d454f5ee71496ab8029ac8627efdb0.jpeg)
Butterfly knife training scene in *Sifu*
![](http://5b0988e595225.cdn.sohucs.com/images/20180112/653c0d7ac11546109806eebede1b0000.jpeg)
Butterfly knife featured in *Ip Man 3*