You can add items to it to be used in the next production cycle, potentially increasing revenue. When you open a productive enterprise you will have access to its warehouse inventory, which has a fixed size of 24 slots, and can only be accessed by visiting your enterprise. You can store items you plan to use later but don't want to keep as a burden, it is also used to store food and goods when preparing to hold a feast. Your household inventory appears in the keep of your owned castles and towns, it can be accessed directly or by talking to your spouse. Additional bolts or arrows can be accessed via this chest during battle, but horses cannot be switched. It contains the same items that are in the player inventory. The battle chest, located at the foot of the banner near where you start a battle, can be accessed to change equipment. All items that are bought or taken as loot after a battle are added to this inventory. The inventory starts with 30 slots and is expandable via the inventory management skill (+6 slots per rank) to a maximum of 90 slots (30 + 60 at rank 10). The player inventory is the primary inventory used, only items in this inventory can be sold, traded or equipped.