This is designed to label the very useful KNAGGLIG boxes from IKEA.
To fit the badge you insert it vertically and rotate by 90 degrees, the lugs behind should then locate the badge securely between the slats of the box. To remove just twist through 90 degrees
It should be the right size to accept a laser label (21 per sheet I think) or you can just write on with a perminant marker.
(This label was for my son's underwear box!)

Yes

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