You cause an object you can touch to grow larger or smaller for the duration. Choose an object that is neither worn nor carried by enemy. If the target is unwilling (sentient item), it can make a Wisdom saving throw. On a success, the spell has no effect.
If the target is a bow/crossbow/sling its ammo resizes wen loaded.
Enlarge. The target's size doubles in all dimensions, and its weight is multiplied by eight. This growth increases its size by one category-- from Medium to Large, for example. If there isn't enough room for the target to double its size, the object attains the maximum possible size in the space available. If weapons are enlarged, the target's attacks with them deal 1d4 extra damage.
Reduce. The target's size is halved in all dimensions, and its weight is reduced to one-eighth of normal. This reduction decreases its size by one category--from Medium to Small, for example. If weapons are reduced, the target's attacks with them deal 1d4 less damage (this can't reduce the damage below 1).* - (as)