Steel key ring

A Steel key ring is the reward from doing the One Small Favour quest. It's useful in that a number of keys can be placed onto it and will hold all of them without taking up extra inventory spaces. You don't have to take keys off of the ring to unlock doors with them.

The key ring can hold most permanent keys (meaning the ones that don't disappear after one use, such as Shade keys, Muddy keys, and Crystal keys). To date, it can hold 12 keys in the following order: