these are knife guards that slide over the blade of your knife to protect  you and the edge. These guards are held on by a friction fit and shouldn't be able to slide off the knife without doing so intentionally. great for traveling with knives or putting them in your kitchen drawer. 

3 sizes

• 130mm paring/utility knife
• 220mm chef knife 
• 300mm bread knife 

tolerances are tight when printing so you need to separate  the guard with a putty knife or something similar