Damage: The number of uses consumed (not remaining) of the item's durability.
Unbreakable: 1 or 0 (true/false) - if true, the item doesn't lose durability when used.
CanDestroy: The only blocks this item may break when used by a player in adventure mode.
: A block ID. Validated the same way as the block_predicate command argument, meaning block states and block tags are accepted, as well as client-side only block entity NBT tags.
CustomModelData: A value used in the "custom_model_data"item tag in the overrides of item models.