Pocket Locker
This space is like a bag of holding, but it only stores weapons and armour, and is infinite, unlike the bag. This pocket space is separate from the bag of holding and is more like a locker that you open when you need something. You activate the space with a key, which you can stick into any flat surface to unlock the storage locker. A locker shape will appear, allowing you to reach into the dimensional space to grab anything you have put in it. Anyone can use the key, and it doesn't require attunement.

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