How do I prevent my items from breaking?

[DaClooz]

I saw something about item variables but i dont understand how you use that to prevent the item in question from losing durability, and im even more confused on how to do it with multiple items.

 

[ARMcPro]

maybe hold the item and do /i unbreakable ?

 

[DaClooz]

maybe hold the item and do /i unbreakable ?

Thank you, you have successfully fixed a bunch of bugs in my game.