How does RL trade work?

How does RL trade work? The Trade-In Feature allows you to trade 5 Items for 1 Item with a higher Rarity. All 5 Items must share the same rarity. If one or more trade-locked Items are used in a trade-in, the Item received will also be trade locked.

The Trade-In Feature allows you to trade 5 Items for 1 Item with a higher Rarity. All 5 Items must share the same rarity. If one or more trade-locked Items are used in a trade-in, the Item received will also be trade locked.