The sheath can also be purchased individually too above

Bunny Brand Hori Hori (Carbon Steel Version) with Sheath:

An all-purpose digging knife used for digging, transplanting, weeding and cutting. The carbon-steel blade is strong and can deal with heavy-duty digging, especially in clay soils. One side is serrated to make cutting weeds and small branches easier. It comes with a sheath. The sheath can be purchased individually too.