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The blades vary in size, shape and construction.
In Australian law, "sheath knife" has a different definition. In this case, they are a type of non-folding, fixed-blade knife which has "a sheath which withdraws into its handle", thus giving something of the effect of an "out-the-front" flick knife. These knives, like flick knives, are classed as "prohibited weapons" in Australia.
- "NSW Legislation". www.legislation.nsw.gov.au. Retrieved 2016-07-09.
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