| 摘要 |
A sheath for a knife is ventilated or is formed with gaps in a way that sand and other debris cannot collect to dull the knife's blade. The sheath holds the knife, protects and safely covers the sharp edge, but does not provide a surface for abrasive sand to dull the edge. The sheath can include front and rear panels, held together with a plurality of spacers disposed between the panels. The spacers can be rounded to as to minimize contact between the spacers and the blade of the knife.
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