Mending
Casting Time
Range
Target
One object
Components:
fragment of equine bone
Duration:
Instantaneous
You repair a single rip or break in the target object (for example, a cracked goblet, torn page, or ripped robe). The break must be smaller than 1 foot in all dimensions. The spell leaves no trace that the object was damaged.
Magic items and constructs may be repaired in this way, but their magic is not restored.
You gain an expertise die on maintenance checks if you are able to cast this spell on the item you are treating.
Source